Klasnic the Bolton hero
Klasnic found the net in the 66th minute, rifling the ball across Mike Pollitt and into the corner having been played in by Mark Davies.
The visitors made the more positive start as Lee Chung-yong swung an effort narrowly wide in the third minute.
Seconds later Pollitt parried a low Martin Petrov drive and Elmander finished from close range, but the effort was disallowed for offside.
Wigan were next to make a mistake at the back as skipper Gary Caldwell intercepted a pass by Lee but played in Elmander, who brought a save out of Pollitt.
Jordi Gomez struck a free-kick high and wide in the 23rd minute before Klasnic squandered the best opportunity of the game with Pollitt getting down to block a shot the Croatian really should have buried.
In a scrappy opening to the second period, Muamba sent a shot into the arms of Pollitt and Gomez scuffed an effort wide from the edge of the box.
Moments later, though, Bolton were ahead as Klasnic collected Mark Davies’ pass, swivelled in the box and smashed a shot beyond Pollitt.
Wigan looked to make a swift response and after Mohamed Diame’s chip over Bogdan became the third effort disallowed for offside, Gomez cracked an attempt against the bar. Martinez’s side continued to press for the equaliser, with Di Santo nodding wide and Moses blazing off-target.
Bolton survived, though, and might have added another goal before the final whistle, Lee and Petrov both hitting efforts wide.
Wigan: Pollitt, Stam, Gary Caldwell, Steven Caldwell, Lopez, Gomez, Diame, Thomas, McArthur, McManaman, Di Santo. Subs: Moses for McManaman 43.Bolton: Bogdan, Ricketts, Wheater, Cahill, Robinson, Lee, Mark Davies, Muamba, Petrov, Klasnic, Elmander. Subs: Alonso for Ricketts 58, Davies for Klasnic 84, Cohen for Muamba 90.Referee: Michael Oliver (Northumberland).
