Until then, I've been Matt Addison. Thanks for following this live coverage. There are just three weeks to go until the new Premier League season, so despite a poor result for Liverpool, there are plenty of reasons to get excited. The frustration from tonight should not last for long.
Liverpool will dust themselves down and go again in the early hours of Thursday morning UK time when they face Manchester City.
The key moment in the game was when Ojo's shot was saved when he was through on goal, and then Dortmund went up the other end and won a penalty, which looked harsh.
Curtis Jones looked good again, Fabinho and Kieta are both settling in well, and Lallana looked sharp, so there are plenty of positives, but Klopp will be disappointed nonetheless.
Liverpool were the better team for large periods of that game, but ultimately were exposed at the back on a couple of occasions near the end which swelled the scoreline.
Full-time. Liverpool fall to their first defeat of pre-season.
90+4' Pulisic's cross goes behind for a goal kick. The American has been good since coming on in the second half.
GOAL! Bruun Larsen gets Dortmund's third from close range after Karius could not hold Pulisic's shot. It's very harsh on Liverpool.
90+2' Milner looks to force something, but his long ball from deep is overhit. Liverpool need a little more guile than that at this stage.
90+1' We are into four added minutes for Liverpool to find an equaliser.
90' Liverpool have very little time to react now. They have deserved more from this match, but Pulisic has shown why Klopp admires him so much.
GOAL! Dortmund have won the game late on! Pulisic gets his second goal after a sweeping counter. Liverpool's defence was nowhere to be seen.
88' Moreno's low ball into the box is well cut out by Gotze. Keita was poised to shoot behind him and it was a crucial stop.
87' Gotze looks for Isak, but it is overhit and sails all the way out and into touch.
86' Milner's corner finds Gomez, but the right-back's header is a simple catch for Hitz. He was under severe pressure and could not get any power on the effort.
85' Gomez gets in behind and delays too long, but he does win a corner. If it stays level, we are going to penalties.
84' Bruun Larsen nips in and steals the ball that Phillips had headed towards Klavan, but his cross is cleared.
83' Keita loses the ball and is then pulled up for a foul on Pulisic.
82' Zagadou heads a Milner corner kick clear after the set-piece had been won by Keita on the left side.
81' Joe Gomez goes into the referee's book for a high foot. He won the ball, but the man in the middle was unimpressed. A bemusing decision from the official.
80' The game has got going again and Burnic is back on the pitch. Ten minutes to go.
78' Ojo was a little late in the tackle and Burnic is down for Dortmund receiving treatment.
77' Solanke plays a fantastic pass into Moreno with the outside of his boot, but the left-back cannot shoot with any venom and the goalkeeper easily collects.
75' Keita and Moreno combine well, but Woodburn's touch lets him down and he cannot get the shot away. Sturridge had been down on the floor with a knock but is now back moving around again.
74' Phillips tries to dribble the ball out from the back but loses it. Bockhorn's pass into Gotze goes out for a goal kick.
72' We are back underway. Less than 20 minutes for either side to find a winning goal.
70' Milner is now called offside. It was a close one and he would have been through on goal. The stoppage gives time for another water break.
69' Solanke stretches but cannot reach the cross from Milner from that set-piece.
68' Liverpool win a free kick when Sturridge was fouled. Ojo was through on goal but was offside, so the referee correctly brought it back.
67' So just when Ojo should have made it 2-0, Dortmund level and make it 1-1. Just over 20 minutes to go.
GOAL! Pulisic shoots straight down the middle. Liverpool cannot believe that the penalty was given. Klavan simply could not get out of the way.
65' Penalty to Dortmund! Solanke loses possession in a dangerous area, and Pulisic picks it up. Klavan cannot get out of the way and the referee points to the spot. It was a harsh call.
64' Huge chance! Great pass from Sturridge into Ojo, whose shot is saved onto the crossbar when he should score. Keita then cannot get on the end of the rebound. That certainly should have been 2-0.
Sub: Nat Phillips is on for Nathaniel Clyne.
61' Keita's step-over beats his man all ends up, but there is no one inside the six-yard box to finish. Milner's short corner then finds Solanke, who heads wide. He should have scored from just three yards out, but puts it the wrong side of the post.
59' Sturridge shoots from 25 yards, but drags it wide. He never got it far enough out of his feet.
58' Pulisic looks to flick a pass into the path of Isak, but it is wayward and Liverpool get a throw-in.
56' Ojo beats his man and puts in a cross, but there is no one there. Milner then hits one from distance that goes marginally over the bar.
55' Bockhorn thought he was fouled, but nothing is given by the referee.
52' The second half is yet to ignite, with both teams feeling their way into the game.
50' Sturridge twists and turns on the left-hand side before making a yard to put in a low cross. Sergio Gomez hooks it clear before Keita can latch onto it.
47' Solanke is fortunate to win a free kick inside his own half, when he was surrounded by yellow shirts.
46' The second period is underway. Dortmund have made nine changes, with only Zagadou and Hitz still on the field.
Both Pulisic and Gotze are coming on at half-time for Dortmund; Liverpool will make eight outfield changes (with Gomez already on for the injured Matip, and Clyne staying on), with Sturridge, Keita and Milner among those to enter the match.
We are expecting wholesale changes at the break, but as soon as that is confirmed, we will let you know. Do not go anywhere!
Liverpool and Borussia Dortmund have been relatively well-matched in the first half, but it is the Reds who lead. Just one moment where the German side's defence switched off was enough for Klopp's team to capitalise.
Half-time. We reach the interval with Liverpool 1-0 up thanks to a goal from Van Dijk midway through the half.
45+1' Boadu's ball into the right channel goes all the way through for a goal kick, with Robertson seeing it out.
45' Two minutes of added time have been indicated.
44' Markovic and Origi break clear on the counter-attack, but the Serb's ball into the striker was intercepted at the last second. Origi would have been through had the ball been slightly better.
43' Wolf's cross is headed into the air by Van Dijk. Karius collects it to prevent a corner kick.
42' Just the one shot each so far in this game as we head towards half-time. The Van Dijk goal aside, there have been few moments to get excited about in this first period.
40' Dahoud drives forward with the ball, and with Dortmund players coming up alongside him, Karius gets down and comfortably gathers a low ball into the box from Wolf. Let-off for Liverpool, who thought Lallana had been fouled at the other end.
37' Camacho engineers some space for a cross, but there is only Origi inside the penalty area. The young winger has been positive this pre-season.
36' Dahoud looks to spray a pass in the direction of Dieckmann, but it sails over his head and Clyne can take a throw-in in Liverpool's defensive half.
34' Jones does well to win a corner, and again Robertson is allowed to cross. This time, though, Dortmund do head it clear of danger.
33' Dortmund are content to have a period of possession, but eventually, a pass goes astray and Van Dijk picks the ball up at the back. There has been little intensity so far tonight.
31' Goalkeeper Hitz is chased down by Origi and can only play the ball out for a throw-in.
30' Boadu is brought down by Lallana, who was late in the challenge. The cross into the box from the set-piece goes straight behind for a goal kick.
29' Clyne is found by a brilliant crossfield pass from Jones. His cross finds Lallana, but the number 20 is crowded out inside the area.
28' After a short water break, Dortmund kick the game off again.
GOAL! Van Dijk with a free header! Camacho played the corner short to Robertson, and the Scot's cross is perfect. Far too easy for Liverpool - the centre back was unmarked from six yards.
25' Camacho puts in a great cross from the right. It evades Markovic and Origi is flat-footed, but Dortmund concede a corner.
23' A great turn from Lallana, who then tries to set up Origi, but the Belgian is offside. He did not need to go that early.
Sub: Gomez has come on for the injured Matip. He will get his chance at the centre of Liverpool's defence.
21' Van Dijk steps in to sweep up a promising Dortmund attack. That is his first real involvement in the game.
19' Markovic looks to latch onto a long through-pass, but Toljan sees that the ball does not reach him.
18' Matip has left the pitch with an injury. Liverpool are currently down to ten men until they can make a change.
16' Sancho is fouled in the middle of the pitch. Wolf wins a throw-in on thr right-hand side.
14' Toljan is fouled by Jones as the ball comes down from the sky. The Dortmund player wanted too much time there and was fortunate.
13' Sancho has been heavily involved early on for Dortmund, and he is instrumental again. Another good move leads to Van Dijk intercepting, poking it back to his goalkeeper.
11' Wolf gets in behind and can cross on the stretch. Clyne puts it behind for a corner which comes to nothing.
10' Sancho looks to play a one-two, but the return is intercepted by Lallana, who has got back to defend in his own penalty area.
9' Clyne plays in Lallana, who tries to loop the ball over the head of Sahin, but a defender gets in to head clear. Clyne then gets another chance to find a purple shirt, but can only play it out for a goal kick.
8' A cross from Robertson evades Lallana, giving Dortmund a throw-in by the corner flag. Liverpool regain possession at the back again.
6' Robertson gets to the byline and stands up a cross in the direction of Camacho, but it is headed clear.
4' Karius gets away with a poor clearance. Phillip controlled the ball and tried to score from halfway when he was gifted possession. Fortunately for the goalkeeper, he could only place it wide of the target while he was stranded.
3' Karius easily picks up a low cross into the box, after a move which was well-worked by Dortmund.
1' Liverpool win the ball back and retain possession early on, as You'll Never Walk Alone rings around the stadium.
Kick-off! It is Dortmund who get the game underway.
The teams are in the tunnel, ready to emerge onto the field, with Liverpool playing in their purple away kit. Less than five minutes to go now.
Adam Lallana will captain Liverpool in the first half. He has had a good pre-season so far and will be looking for that to continue. The start of the game is fast approaching.
Kick-off is just over 20 minutes away and both teams are warming up on the pitch.
Tonight's referee is Allen Chapman. The 43-year-old was the first ever referee to oversee a professional game with the help of VAR back in 2016, but that will not be in use in this match.
Borussia Dortmund subs: Sechelmann, Isak, Bockhorn, Gotze, Piszczek, Pulisic, Burnic, Rode, Reus, Oelschlagel, Toprak, Hakimi, Gomez, Bruun Larsen, Schmelzer
US star Christian Pulisic has been left out of the Dortmund starting eleven. Lucien Favre has named him as a substitute. Only yesterday, Jurgen Klopp admitted he was a player he admires, having worked with him when he was in charge of the German side.
Former Liverpool man Nuri Sahin is joined by former Liverpool target Mahmoud Dahoud in the Dortmund eleven, then, with English youth international Jadon Sancho also handed a start.
Borussia Dortmund starting XI: Hitz, Zagadou, Diallo, Sancho, Sahin, Toljan, Wolf, Dahoud, Philipp, Boadu, Dieckmann
Borussia Dortmund are yet to announce their line-up for tonight's game, but will be doing so in the next few minutes.
Divock Origi, then is given a chance to shine through the middle. He has struggled so far in pre-season but has often been playing off the left. Lazar Markovic gets another chance to impress having been good against Blackburn Rovers on Thursday night, where he notched the opening goal. He does not have a future with the Reds, but will be looking to earn a move elsewhere.
Liverpool subs: Kelleher, Grabara, Milner, Keita, Gomez, Sturridge, Klavan, Moreno, Solanke, Phillips, Ojo, Woodburn
Liverpool are expected to make ten changes at half-time, with only Karius remaining on the field.
Liverpool starting XI: Karius, Clyne, Matip, Van Dijk, Robertson, Fabinho, Lallana, Jones, Camacho, Origi, Markovic
We will have updates on team news as soon as we have them. Stay tuned to see how Liverpool fare in their fourth of nine pre-season fixtures. Kick-off is at 21:05 BST on Sunday.
Liverpool face Manchester City in their next game in the International Champions Cup on Thursday, with the Manchester United game on Saturday night. Having faced City already, Dortmund play Benfica on Thursday in the final game of their US tour. They face RB Leipzig on the first day of the Bundesliga, two weeks after Liverpool's Premier League campaign kicks off.
Jordan Henderson, Trent Alexander-Arnold, Simon Mignolet and Dejan Lovren remain on holiday following their World Cup runs. With Danny Ward having departed to Leicester City, Loris Karius will play in goal. Irish teenager Caoimhin Kelleher, who came on as a substitute for Karius against Blackburn, and Polish stopper Kamil Grabara are also in the squad and could feature.
Gini Wijnaldum has a virus that will mean he misses the game, while Pedro Chirivella has a sore back and will not feature either.
Danny Ings has not travelled because of injury amid rumours he may be on the way out, while Ryan Kent has also been left at home as he finalises a loan move to Steven Gerrard's Rangers.
New signing Alisson will join the squad upon the completion of their American travels, but Mo Salah, Sadio Mané, Marko Grujic and Xherdan Shaqiri will all be with the team. None will feature tonight, and are unlikely to be seen until the third and final game on US soil, against Manchester United next Saturday.
Liverpool have already played four friendlies with mixed results in England before they flew out to America, against Chester, Tranmere, Bury and Blackburn. This game represents a step up in quality. Dortmund played Manchester City in the early hours of Saturday morning UK time, winning 1-0 thanks to a penalty won by Christian Pulisic, and converted by Mario Gotze.
I'm Matt Addison, and while I can't guarantee a game as good as the last time these two sides met, where it finished 4-3 to the Reds at Anfield in the Europa League, it should be a decent spectacle as preparations for the new season are stepped up a gear.
Hello and welcome to VAVEL's live coverage of Liverpool against Borussia Dortmund as part of the International Champions Cup in the USA.