Roberto Martinez has moved to ease fears that Paul Scharner will not play any further part in his side's fight against relegation.
The Austrian defender, who also plays in midfied, stormed out of the DW Stadium after being substituted during his side's goalless draw with relegated Portsmouth on Wednesday.
After appearing to be nearing safety, the Latics now lie just one place and four points above the relegation zone, winning just one of their last six games.
Scharner has played a major part in Wigan's stint in the Premier League after signing during their first season in the top flight from SK Brann in 2006, but left the stadium by the end of Wednesday's game after Martinez replaced him with striker Marcelo Moreno.
With Wigan facing a stern test against title chasing Arsenal at home on Sunday, whether Scharner, who has played a part in every league game this season, will be on the team sheet is open to debate.
Supporters were also rumoured to be singling out the 30-year-old for criticism, with some sections believing he is playing out time until the end of the season, after which he will depart the club with his contract then expired.
Latics boss Martinez however played down his actions, dismissing the incident as merely letting off steam following a frustrating run of results.
"Scharner is a winner," said Martinez.
"We all felt a bit anxious and frustrated and he was just feeling it.
"He has no issues whatsoever."