West Ham United
Green signed a four-year deal with West Ham United, where he teamed up with former Norwich striker, Dean Ashton who had been sold to West Ham in January 2006. Green made his debut for West Ham on 19 October 2006 in a 1–0 defeat against Tottenham Hotspur at White Hart Lane. Two of his best performances were when West Ham won 1–0 against Arsenal at the Emirates Stadium and against Manchester United where he helped his team to a 1–0 win, which preserved West Ham's Premier League status. Green kept nine clean sheets in 26 appearances during the league season.
In 2007–08, Green saved the first three penalties taken against him. The first, against Kevin Doyle of Reading, the second, Benjani of Portsmouth in injury time, and the third from Tottenham's Jermain Defoe, again in injury time. The streak was ended by James McFadden of Birmingham City on 9 February 2008. He played in every match and was named the West Ham Hammer of the Year with the team finishing in 10th place in the Premier League.
In 2008–09, Green saved yet another penalty, this time on 30 August 2008 against Jason Roberts of Blackburn Rovers, West Ham then went on to win the match 4–1. Green played all 38 league matches for West Ham in that season, keeping ten clean sheets. And again played in all 38 league matches for West Ham in 2009–10, keeping eight clean sheets and saving yet another penalty, this time from Aston Villa's Ashley Young in a 2–1 victory.
Green made 44 appearances in all competitions during 2010–11, keeping seven clean sheets. He saved a penalty in a 3–1 victory over Wigan Athletic at Upton Park and then again against Stoke City in a 2–1 FA Cup defeat. On 19 March 2011, Green made a world-class save against Gareth Bale's free kick in the 0–0 draw with Tottenham Hotspur at White Hart Lane. He was named Hammer of the Year as runner-up to Scott Parker.
Green was sent off for the first time in his club career against Blackpool on 21 February 2012. West Ham, who had not named a substitute goalkeeper in their squad for the match, were forced to play the remainder of the second-half with midfielder Henri Lansbury in goal. They eventually won 4–1. West Ham later won an appeal against the red card leaving Green available to play in their next match. He played 42 of West Ham's 46 match 2011–12 Championship season playing in the play-off final at Wembley Stadium which West Ham United won, sealing their immediate return into the Premier League. In June 2012, after West Ham and Green failed to agree new terms at the end of his contract, joint-chairman David Gold announced Green's departure from the club.
