An 81st-minute penalty from debutant Mido earned Wigan a 1-1 draw and severely damaged Liverpool's Barclays Premier League title ambitions.
Once again Rafael Benitez's side failed to capitalise on their domination and had only Yossi Benayoun's 41st-minute effort to show for their efforts.
It proved not to be enough when Brazil midfielder Lucas Leiva's senseless rash challenge on Jason Koumas allowed Mido, signed on loan from Middlesbrough last week, to convert the penalty.
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