Liverpool have the opportunity to avenge back-to-back Barclays Premier League defeats to West Ham United when they host the Londoners in the fourth-round of the FA Cup on Saturday evening.
Fresh from sealing their place in the Capital One Cup final courtesy of a 6-5 penalty shoot-out victory over Stoke City, Jürgen Klopp's side can progress into the last 16 of the other domestic cup competition.
But they face a tough task in doing so, coming up against a side that have already beaten them twice this season - 3-0 at home and 2-0 away - making it the first time in 52 years that Liverpool have suffered the double at the hands of the Hammers.
Slaven Bilić's sit two points above the home side in the league and will approach the game with the utmost confidence with the return of playmaker Dmitri Payet having reinvigorated their form.
West Ham's blend of physicality, flair and guile caused all kinds of problems in both of the previous meetings between these two sides - with Manuel Lanzini stealing the headlines at Anfield and Andy Carroll, with his first goal against his former employers, taking the plaudits after the Upton Park clash earlier this month.
After that game, the first of the New Year, Klopp criticised his team for not putting in 100 per cent effort and bemoaned that 95 per cent isn't enough, and though he's not expected to field a full-strength side, he'll be expecting more in the way of fight and determination this time around.
The two goals on that afternoon were both simple crosses into the box that they failed to deal with, leading to West Ham gaining a relatively routine three points as the visitors managed just two shots on target from 23 attempts.
And with his side's inconsistency costing them ground in the chase for Champions League qualification, the success of Klopp's first season in charge could be dependent on their achievements in cup competitions.
As such, the German will be taking this opportunity as a serious one despite injuries and a packed fixture schedule preventing him from taking the competition as intensely as he otherwise might, with another visit to Wembley Stadium just one game away should they win this.
Alternatively, with West Ham having already ended their long 52-year wait for a first Anfield win back in August, they will now be targeting the chance to win a first ever cup game on L4.
And given that this game marks the first FA Cup meeting between the two since the 2006 final, which will be 10 years ago this May, West Ham may see it as a chance to get some revenge of their own - though the onus is very much on Liverpool to avoid three defeats to them in one single season - something which has never happened before.
Team news
Klopp is expected to make a whole host of changes to his starting eleven - with a number of those who beat Exeter City 3-0 in their third-round Anfield replay little over a week ago being considered.
Steven Caulker is likely to make his first start for the Reds. The on-loan centre-back has only made three appearances off of the bench so far for the first-team and could be paired with the returning Dejan Lovren in defence.
Nathaniel Clyne is also in contention to return from a knee injury which kept him out of the midweek semi-final success, with Jon Flanagan unlikely to feature after playing 105 minutes on his first start in 20 months on Tuesday.
Elsewhere, Joe Allen, Brad Smith, Jordon Ibe and Christian Benteke are amongst those expected to start - but captain Jordan Henderson will be absent after being forced off after an hour against Stoke.
The game comes too early for Philippe Coutinho, who is yet to be back in full training though he nears his return from a hamstring injury, whilst Divock Origi (knee surgery), Martin Skrtel (hamstring), Daniel Sturridge (hamstring), Joe Gomez and Danny Ings (both anterior cruciate ligament) all remain out.
Right-back Carl Jenkinson, on loan from Arsenal, is out after suffering a serious knee injury in West Ham's recent 2-2 draw with Manchester City - whilst Manuel Lanzini and Diafra Sakho (both thigh) are both out.
James Tomkins and Michail Antonio could return from knocks, likewise Mark Noble from illness, but Andy Carroll and Joey O'Brien aren't expected to be involved, whilst January signing Sam Byram is cup-tied.
Head-to-head:
At Anfield: Liverpool - 39 wins, Draws - 15, West Ham - 4 wins.
At Upton Park: West Ham - 22 wins, Draws - 15, Liverpool - 22 wins.
Overall: Liverpool - 61 wins, Draws - 31, West Ham - 26 wins.
Last meeting: West Ham United 2-0 Liverpool, Barclays Premier League, 5 January 2016.
Recent form:
Liverpool
Form in Premier League: WLDLW
Form in all competitions: DLWWL(6-5 win on penalties)
West Ham United
Form in Premier League: WWWLD
Form in all competitions: WWWLD
Match facts:
Having met six times previously, Liverpool have never lost against West Ham in this competition - winning four and drawing two. Most notably, their last meeting, the 2006 final where the Reds won on penalties following a 3-3 draw.
Liverpool have lost three of their last four meetings with West Ham and haven't scored a goal against them since January 2015.
Anfield hasn't bore witness to a Liverpool defeat to a Premier League rival in the FA Cup, at least inside 90 minutes, since 2008.
The Reds haven't conceded an FA Cup goal on home soil since 2012, when they last reached the final.
Liverpool's last seven FA Cup fixtures against top-flight teams have all ended 2-1, with them winning four and losing three by that scoreline.
The hosts have only won one of their last four games against Premier League opponents in this competition.
West Ham have only won one of their last eight FA Cup games away from home - losing six - whilst they've only won two of their last 10 away games in all competitions, drawing four and losing four.
Man in the middle:
Experienced official Martin Atkinson is the man in charge of this encounter, having come under criticism for a number of controversial decisions in the other Capital One Cup semi-final second-leg between the Reds' Merseyside rivals Everton and Manchester City on Wednesday night.
The 44-year-old has been part of Select Group Referees since 2005, taking finals of this competition, the League Cup, UEFA Europa League and Community Shield to name but a few.
He has overseen 287 Premier League games in total, dishing out 971 yellow cards and 50 red cards, including 37 Liverpool games - though he has only taken their 1-1 draw with Everton and a 1-0 win over Leicester City so far this season.
He has officiated this fixture once before, on January 31st January 2007, when Liverpool won 2-1 away at West Ham.