West Ham United and Liverpool isn't the first pair of clubs most people think of when naming teams with players in common.
However, no fewer than 20 different players have represented both clubs in the Premier League, with others - including current West Ham backup goalkeeper David Martin - spending time on the books of both but only playing for one.
Those who have played for both clubs include academy graduates and Champions League winners, fan favourites and flops, big-money arrivals and those who moved clubs without a fee being paid.
We have compiled a starting XI and substitutes, which - with all the players at their peak - could make a decent fist of things in the Premier League.
Goalkeeper - David James
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Former England goalkeeper James played more times for Liverpool than for any other club, and made his senior international debut while at Anfield.
However, he also had a decent stint at West Ham, playing more than 100 games for the London club and travelling to the 2002 World Cup while on the Hammers' books.
James suffered Premier League relegation with West Ham in 2003, before returning to the top-flight with Manchester City and Portsmouth.
Right-back - Glen Johnson

Johnson broke through at West Ham as a teenager, also during that ill-fated 2002-03 season, and may have stayed longer had the team not been relegated.
He moved to Chelsea at the end of that campaign, and eventually ended up at Liverpool in 2009 after three seasons with Chelsea and three more (including one on loan) with Portsmouth.
It was with the Reds that the full-back enjoyed his most productive spell for his country, starting six times for England across the 2010 and 2014 World Cups.
Centre-back - Rigobert Song

Centre-back isn't the strongest part of this team, with some of the best moments of Song's career coming away from the Premier League.
The Cameroon international spent just over a year at Anfield, before an underwhelming spell in east London after moving south as a replacement for Rio Ferdinand when the West Ham academy graduate moved to Leeds.
His nephew Alex also spent time at West Ham, spending two seasons on loan at the club from Barcelona, but never played for Liverpool.
Centre-back - Neil Ruddock

A regular presence in Liverpool's early Premier League years under Graeme Souness and Roy Evans, Ruddock would eventually move south after falling out of favour at Anfield.
The former Millwall and Spurs man only spent two seasons with the Hammers, but helped them secure a fifth place finish in 1998-99 - still their best in the Premier League era.
It was during his time at Liverpool that Ruddock won his solitary England cap, playing against Nigeria in 1994.
Left-back - Julian Dicks

Dicks is best known as a West Ham player, where he captained the side and played a major role under Billy Bonds and Harry Redknapp.
However, after helping the London side win promotion to the Premier League, he moved to Anfield and scored three times in his 13 months with the Reds.
After returning to Upton Park in 1994, the defender enjoyed five more years as a Hammer, strengthening his reputation as a ferocious penalty-taker.
Right midfield - Yossi Benayoun

Like Dicks, Benayoun joined Liverpool directly from West Ham before later returning to Upton Park.
The London club represented the first of five clubs he represented during nine years in England, while Liverpool was the club for whom he racked up the most appearances.
While on the books of the Merseyside club, Benayoun became the first player to score hat-tricks in the Premier League, FA Cup and Champions League.
Central midfield - Javier Mascherano

A few months before Benayoun moved from London to Merseyside, Mascherano made the same switch.
The Argentina international had a forgettable time in London, but makes this team on the strength of his brilliance at Anfield.
Mascherano was part of the Reds' side which finished second in the Premier League in 2008-09, before moving to Barcelona in 2010 and winning the Champions League twice with the Catalan club.
Central midfield - Don Hutchison

Hutchison joined West Ham from Liverpool in 1994, and would eventually have two spells with the club under two different managers.
The Scotland international was part of the Reds' squad for their first ever Premier League season, and also played for Everton later in his career.
He rejoined West Ham as their record signing in 2001, but his second stint was blighted by injury and he played his last game for the club a few months before they were promoted back to the top flight in 2005.
Left midfield - Joe Cole

Cole would probably rather forget his Anfield spell, which began with a red card on his Premier League debut and ended with a return to West Ham.
The academy graduate had burst onto the scene in east London as a teenager, and captained the side before leaving for Chelsea following relegation in 2003.
Cole's second spell at West Ham was less spectacular, though it did include two assists against Manchester United on his second debut.
Striker - Andy Carroll

Carroll will go down as an expensive disappointment at Liverpool, with the Reds taking a substantial financial hit when he left the club.
Things went better for the former Newcastle man at West Ham, though, with an impressive loan spell under Sam Allardyce followed by a club record permanent move and plenty of ups and downs.
While the striker's seven years in London weren't without injury issues, his 33 league goals represents the sixth-highest total of and West Ham player in the Premier League era.
Striker - Craig Bellamy

When Benayoun moved from West Ham to Liverpool in 2007, Bellamy moved in the opposite direction after just one season with the Reds whom he had joined from Blackburn Rovers.
The Welshman struggled with injury in his first season under Alan Curbishley, but found his feet when Gianfranco Zola took over at Upton Park and earned a big-money move to Manchester City in January 2009.
He would end up returning to Liverpool in 2011, scoring a crucial goal against former club City en route to the League Cup final against boyhood favourites Cardiff City.
Bellamy then left Liverpool after another one-season stint, linking up with Cardiff where he'd see out his career.
Substitutes
Adrian, Alvaro Arbeloa, David Burrows, Paul Konchesky, Stewart Downing, Mike Marsh, Victor Moses, Titi Camara, Robbie Keane.