The Cottagers admit they will have Third Division York City watched closely over the next week as they prepare for their FA Cup fourth-round tie.
Fulham's victory over Wycombe on Tuesday earned them an away trip to Bootham Crescent, and assistant manager Christian Damiano admits they will be a new challenge.
He said: "We don't know about them, but we will find out. We need to go and observe this team to find out about how they play.
"We must take it seriously because in one game every team has the capacity to have a good result, and this is the spirit of the cup.
"It's the big difference from the championship and we know we have to be careful about York."
Meanwhile Fulham will today begin work on patching up the Craven Cottage pitch, as its current poor state is hindering The Cottagers' passing game.
Jean Tigana has complained about the state of the playing surface over the last two matches and fears it could eventually harm his side's Premiership chances.
The surface is cutting up badly and is therefore making it difficult for Fulham to play their preferred passing style of play.
Now work is due to start on one side of the pitch in particular where divots are making it impossible to play. And Tigana is urging the groundstaff to do everything possible to improve the conditions.