Brede Hangeland insists Fulham's squad have got the stomach for a relegation fight.
The Cottagers' miserable season took another turn for the worse on Tuesday night after they were dumped out of the FA Cup by League One strugglers Sheffield United.
Rene Meulensteen's men are bottom of the table, four points adrift of safety with just 14 games remaining to haul themselves clear of the drop zone.
"We are going through a very tough time," Hangeland told the club's website. "I hope this is rock bottom because there's only one way up from here.
"Everyone can be rest assured there will be no stone left unturned in the quest to resolve this. We need to work extremely hard to put our form right and start getting results.
"It's about character now and who's up for the fight. There's a lot of good guys in the dressing room who really care about this, so I'm hoping we have enough."
Fulham have a nightmare run of fixtures that sees them face Manchester United, Liverpool and Chelsea in their next four games.
But Hangeland added: "We're playing tough teams in the next couple of games, but we'll go into battle and see what happens."
