As a free agent, Christanval spent two weeks on trial at Arsenal in the summer and later claimed that Sol Campbell wanted to leave Highbury.
Fulham will be hoping that the 27-year-old doesn't blurt out this kind of information to the press about their players.
Christanval, who is contracted until 2008, was quoted as saying: "Sol asked to leave. He has not recieved any concrete offers as far as I know."