Wigan midfielder Paul Scharner has said he is struggling to come to terms with Monday's controversial defeat to Manchester City.
The Latics were beaten 3-0 at Eastlands, conceding all three goals after a dubious decision before the hour mark.
Referee Stuart Attwell issued a controversial red card to centre-back Gary Caldwell following his tackle on Carlos Tevez.
Caldwell will now miss Wigan's next three games against Fulham, Portsmouth and Arsenal respectively, with Scharner likely switching to a central defensive role in his absence.
The Austria international admits to being frustrated by Monday's result, which he feels does not reflect Latics' performance.
"I never got the feeling we might lose the game until Gary was sent off and the first goal went in," he told the Wigan Post.
"We had done really well in keeping them away from our goal, and we looked very dangerous in front of their goal.
"There was absolutely no reason for us to lose that game, and that's why it is so frustrating.
"The main moment in the game was absolutely the wrong decision from the referee.
"I couldn't sleep on Monday night actually. I was just lying there searching for reasons why we lost the game."
Scharner, who has been linked with a move to Fulham when his current deal expires, says Wigan must now focus on winning as many games as possible in the run-in.
"We have to look to get as many points as possible - not just looking to get four or five but to go for all 18," he said.
"If we can get 18 points, we will be totally safe, and that should be our target."