I've been Jack McGraghan for VAVEL UK, thank you all for tuning in and make sure to return in just over an hour for more World Cup action!
South Korea have all-but exited the World Cup in the group stage after their second consecutive loss, and that could be confirmed should Sweden beat Germany in the 7PM kick-off.
It proved to be too little, too late for South Korea as Son's injury-time scorcher couldn't lead to any sort of salvation. Mexico go top of Group F and all-but ensure qualification for the round of 16 with six points!
FULL-TIME: South Korea 1-2 Mexico
Well they haven't offered a lot of attacking intent for most of the game, but Son has just curled into the far corner of the net from 25 yards to halve the deficit with three minutes to go!
90+2' - GOAL FOR SOUTH KOREA!
90' - There will be a minimum of five minutes added time at the Rostov Arena.
88' - Mexico are doing a good job of killing any momentum in the game at the moment, and it looks like all three points are heading their way.
84' - Substitute for South Korea. Hong Chul replaces Kim Min-Woo.
83' - Just under 10 minutes remaining and South Korea look to be all-but heading out of the World Cup barring a late miracle.
80' - Jung Woo-Young's first action of note is to etch his name into the referee's book with a yellow card - not the impact he was hoping for.
77' - South Korea also make a substitution in an effort to salvage something from the game as Moon Seon-Min is replaced by Jung Woo-Young.
77' - El Tri make their third change as Giovani dos Santos comes on to replace Vela.
75' - Mexico almost the architects of their own downfall as Marquez gifts the ball to Ki one-on-one, but neither him nor Son can get a shot away to halve the deficit.
72' - Lee Seung-Woo goes into the book for a poorly timed challenge on Layun in the centre of the pitch.
71' - El Tri make another change with the tireless Lozano making way for Jesus Corona.
67' - Mexico make their first change of the game as Rafael Marquez replaces captain Andres Guardado.
Javier Hernandez nets his 50th goal for El Tri! An incisive counter from the Mexicans led to Lozano biding his time before finding Hernandez, who cuts inside and strokes past Cho to double Mexico's lead!
66' - GOAL FOR MEXICO!
64' - South Korea are making a change here - Ju Se-Jeong comes off for Lee Seung-Woo.
63' - Lee Yong is shown the second yellow card of the game for a needless trip on Lozano.
62' - Layun sets his side on the counter-attack and finds Vela on the edge of the area, who cuts inside and whips his shot just over the crossbar.
61' - Lozano takes down Moreno's lofted ball beautifully but can only fire straight at the on-rushing Cho. Mexico still searching for the all-important second goal.
58' - Guardado picks up from Hernandez's rebounded effort and fires towards the top corner from 20 yards only to be denied by an acrobatic save from Cho.
58' - Kim Young-Gwon goes into the book for a foul on Vela.
56' - Ki tries his luck with a first-time strike from 20 yards and although Ochoa struggled with the power of the effort initially, the Mexico keeper pounced on the ball at the second attempt.
56' - Guardado's free-kick is sent straight into the grateful hands of goalkeeper Cho, who rose well above the crowd to claim the ball.
55' - Ju brings down Lozano 25 yards from goal and now Mexico have a chance to whip a cross into the area...
52' - Hernandez is next to try his luck from distance and, in similar fashion to Lozano, blazes over the bar despite the overlapping run of Layun on his right-hand side.
51' - Lozano and Vela link up on the edge of the penalty area before the former cuts inside and fires comfortably over the crossbar.
49' - It's been a cagey opening few minutes of the second half in Rostov with neither team really gaining the upper hand as Mexico did in the first half.
46' - Mexico get the game back underway and are 45 minutes way from progressing to the round of 16.
The teams are out on the pitch ahead of the second-half, which is now just moments away...
Mexico have enjoyed the lions share of possession in the first-half and have a one-goal lead to take into the second 45, while South Korea must offer more going forward if they are to salvage their World Cup place.
HALF-TIME: South Korea 0-1 Mexico
43' - Lozano works his way into the area but blazes his shot well over the bar.
34' - Lee Yong is down with a slight injury problem here, although it doesn't look like anything that will force Korea into a substitution.
31' - Son hits a powerful free-kick clear of Ochoa's crossbar from 25 yards, he'll need to do better if he is to drag his side level here in Rostov.
El Tri supporters are in high spirits after that goal put them in pole position to qualify as Group F champions - they just need to keep their cool. for the remaining hour.
28' - Layun almost makes it two! Vela strolls into the box and picks out Layun just inside the box, but the latter's strike is deflected over the bar for a corner.
It's a confident penalty from Carlos Vela to hand his side the advantage, and South Korea have a tough task on their hands now to get back into the game!
26' - GOAL! VELA PUTS MEXICO AHEAD!
Jang gives away a needless spot-kick as his trailing arm is struck by Guardado's pass inside the area, no doubt in the referee's mind. Vela steps up with the chance to put his side ahead...
24' - PENALTY TO MEXICO!
23' - Ki connects with the corner to head towards goal but Ochoa is equal to it and tips over the bar in acrobatic fashion.
22' - Korea have a decent chance as Son is played in behind only for the recovering Salcedo to throw himself in front of the strike to block on two occasions. A corner is set to follow.
19' - Son relieves the pressure on his side by winning a free-kick just inside the Mexico half.
16' - Mexico win a corner as they look to turn the pressure up a notch, but it results in a comfortable catch for goalkeeper Cho.
15' - He made headlines for netting the winner against Germany, but Lozano's defensive side is shining here in Rostov - he has worked tirelessly in the opening 15 minutes to deny South Korea any space or time in possession.
13' - Almost a goal for South Korea! Lee Yong looked destined to volley home at the back post only for Lozano to throw himself in front of the shot and win a free-kick for his side. Great defending from the wide man!
12' - Layun's free-kick is headed comfortably wide by Hernandez. Mexico yet to create a clear chance but they're in control of the game.
9' - Guardado wins Mexico a free-kick 35 yards out after he was taken down by Ki - El Tri looking the more promising side here.
7' - It looks like the Koreans are setting up in a 433 in order to support Son going forward, but it's their opponents who are dominating possession at the moment.
5' - South Korea deal with the set-piece well and clear their lines, but with no one up front to hold the ball up it simply returns to Mexican feet.
4' - Lee Yong fouls Lozano out wide shortly afterwards, and now Layun has a chance to put the ball into the box from 25 yards.
3' - Free-kick to Mexico in the centre of the pitch after Hernandez was tripped by Ju.
1' - We're off! South Korea get proceedings underway attacking from left to right.
South Korea have opted to shift their main man Son into a central role after their impotent display against Sweden, they desperately need the decision to pay off as they could be heading out of the tournament tonight should they lose.
Dare I say it, but the Mexicans have edged it with an impressive showing during the national anthems - let's see if they carry that energy into the match.
The teams are heading out of the tunnel with the national anthems shortly following...
Belgium and Tunisia got today's action underway with a seven-goal thriller, meaning there has still yet to be a goalless draw in the 2018 World Cup - here's hoping it stays that way come the final whistle in Rostov.
South Korea Subs: Hong Chul, Jung Seun-Hyun, Jung Woo-Young, Kim Jin-Hyeon, Kim Seung-Gyu, Kim Shin-Wook, Ko Yo-Han, Koo Ja-Cheol, Lee Seung-Woo, Beom-Seok Oh, Park Joo-Ho, Yun Young-Sun.
Mexico Subs: Aquino, Ayala, Corona (GK), Corona, G. dos Santos, J. dos Santos, Fabian, Gutierrez, Jimenez, Marquez, Peralta, Talavera.
South Korea XI: Cho Hyun-Woo; Kim Min-Woo, Kim Young-Gwon, Jang Hyun-Soo, Lee Yong; Ki Sung-Yeung (C), Hwan Hee-Chan, Ju Se-Jeong, Moon Seon-Min; Son Heung-Min, Lee Jae-Sung.
Mexico XI: Ochoa; Gallardo, Moreno, Salcedo, Alvarez; Guardado (C), Herrera, Layun; Lozano, Hernandez, Vela.
Kick-off is just under 45 minutes away and the teamsheets are in, starting with Mexico...
Juan Carlos Osorio is simply looking to keep Mexico's momentum rolling on towards the round of 16 this afternoon and has a fully fit squad to choose from, while his opposite number Tae-yong has a decision to make as to who replaces injured full-back Park Joo-ho.
The 2002 semi-finalists' current star man Son Heung-min was largely a bystander during their defeat against the Swedes, and if they are to stand a chance of earning all three points at the Rostov Arena this afternoon their supply to the Tottenham forward must improve.
Mexico's goalscorer Lozano is the man fans should keep an eye on throughout today's game as he looks to continue to impress on the world stage after a highly impressive World Cup debut against Germany.
While Mexico's opener thrilled fans for all the right reasons, South Korea's opening defeat was a rather dull affair - but with Shin Tae-yong's men needing a victory to realistically keep their hopes of progressing alive, a repeat of those defensive tactics seems unlikely.
The pair last met in the World Cup at France '98, where Mexico ran out 3-1 winners despite going behind with Ha Seok-ju sent off just one minute after putting South Korea ahead.
The Taegeuk Warriors meanwhile fell to defeat by the same scoreline against Sweden, becoming one of many victims of VAR with their opponents awarded a penalty thanks to the review system - which captain Andreas Granqvist calmly slotted away to leave South Korea on no points heading into their second game of the tournament.
El Tri sprung one of the major surprises of the tournament so far as they ran out 1-0 winners over World Cup holders Germany last Sunday thanks to Hirving Lozano's 35th minute strike, putting them level with Sweden at the summit of Group F with a win this afternoon potentially enough to secure qualification - should the Swedes record a shock victory over Germany.
Good afternoon and welcome to your second World Cup fix of the day! I'm Jack McGraghan and I'll be bringing you the action from the Group F clash between South Korea and Mexico, with both nations desperate for points for very different reasons.