Fulham boss Martin Jol revealed skipper Brede Hangeland was withdrawn during last night’s win at Crystal Palace due to a nerve problem.
The towering defender allowed Adrian Mariappa to climb above him to head in Crystal Palace’s opener.
Hangeland, who was also forced off in the victory against Stoke a fortnight ago, was substituted at the break as the visitors went on to win 4-1 at Selhurst Park.
Fulham will assess their captain in the next few days to try and discover the full extent of the problem ahead of Saturday’s trip to Southampton.
Jol said: “He’s got a nerve which causes him problems.
“He played two games for Norway so I thought he was 100 per cent but at half time we had to take him off.
“I’m not a doctor but a nerve can cause you problems.”