An exquisite lob from Diafra Sakho earned West Ham just a second Premier League win of the season as Liverpool were outplayed in a 3-1 result at Upton Park.
West Ham were 2-0 up after seven minutes as Winston Reid headed in before Diafra Sakho exposed the Reds' defensive inadequacies once more with a stunning chip.
Mario Balotelli and Adrian were booked following an altercation after the Liverpool striker's late tackle on the West Ham goalkeeper, who reacted angrily. Balotelli showed his better side when bringing down the cross which led to Raheem Sterling pulling a goal back for the visitors, but West Ham were by far superior throughout.
Liverpool improved in the second half but, in pressing for an equaliser, were vulnerable at the back and Morgan Amalfitano struck a late third.
Alexandre Song, on his first start following his loan move from Barcelona, Cheikhou Kouyate, striker Enner Valencia and goalscorer Diafra Sakho were influential for Sam Allardyce's men, who inflicted Liverpool's second away loss this calendar year.
The Reds' first came at Manchester City a month ago, but now Brendan Rodgers' men have lost successive Premier League games for the first time since December following last week's defeat to Aston Villa.
Liverpool are now six points behind leaders Chelsea in the table, having played a game more, while the pressure on Allardyce, in front of his own fans at least, has lessened with a second home win in six matches.
