Chelsea refused to give up the fight in the defence of their Premier League crown with Florent Malouda earning victory against bottom-placed Wigan. It was Drogba who carved out Chelsea's first chance - which came inside a minute - but Frank Lampard mis-kicked his cross and Ramires failed to control and convert at the back post. Charles N'Zogbia was controversially flagged offside after being put clean through by Ben Watson, while Hugo Rodallega wriggled away from the attentions of David Luiz, only to see his shot blocked by Ashley Cole. But moments before the break the hosts would have been in front had it not been for Al Habsi, who produced a fine reaction save from Malouda's half-volley after he latched onto Drogba's flick. Chelsea were eventually in front after a Drogba corner was headed goalwards by Luiz and flapped away by Al Habsi under pressure from Torres, who appeared to foul the Wigan keeper. No free-kick was given and the ball eventually fell to Malouda to fire home a half-volley from close range. Wigan had late chances to equalise, with Cech palming away Di Santo's downwards header at full stretch. And in the dying minutes on-loan midfielder Tom Cleverley had one last chance for Wigan, but his turn and strike from the edge of the area was straight at Cech as Chelsea held on for a victory they narrowly deserved, leaving Wigan two points from safety. Wigan manager Roberto Martinez: "We're not unlucky, the performance was magnificent and I couldn't be happier in the way that we played against them in first half. But the goal was a football crime - the free-kick call was as big a call as giving a penalty. Ali was trying to get out and Torres has got his elbow in his face.