Wigan striker Hugo Rodallega's eighth Barclays Premier League goal of the season put a huge dent in Liverpool's top-four aspirations after their 1-0 defeat at the DW Stadium.
The Colombia international volleyed home Emmerson Boyce's 35th-minute cross after Dirk Kuyt had needlessly given away possession close to his own penalty area.
Liverpool showed little of the quality required for a place in the Champions League once Fernando Torres had hit a post in the eighth minute and the Latics were well worth their victory.
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