Fulham boss Felix Magath admits a lack of confidence within his squad is starting to become a concern after the 3-1 defeat by Chelsea.
Magath's Craven Cottage debut did not go according to plan as his side failed to make the most of their positive first-half display and crumbled after the break.
Chelsea forward Andre Schurrle scored a 17-minute hat-trick, with Fulham's heads seeming to drop after the German broke the deadlock with a goal Magath was at a loss to explain from a defensive standpoint.
He also admitted it had really hurt their chances when Brede Hangeland was forced out of the game in the first-half with blurred vision after an accidental clash of heads with team-mate Kieran Richardson.
"I was satisfied with the first half," Magath said. "We had two or three good situations but I don't know what happened at half-time and it seems the players forgot to defend.
"It was for us a very big problem that our captain was injured and wasn't there in the second half.
"I don't know how difficult the injury to Brede Hangeland is and I hope he will come back and join us next week but we have to work on defending.
"I have seldom seen a goal like the first today. Schurrle takes the ball form near his own goal and runs the whole field and no-one tackles him. He can run 90 metres and score with no contact.
"If you take over a team who have not won for weeks they are losing confidence.
"We started very well and we fight very well against Chelsea but after they get one goal you don't have the morale to come back."