Fulham boss Martin Jol has no doubts Mousa Dembele will prove a Premier League star.
Dembele impressed in defeat to Tottenham.
Jol said: "Mousa Dembele is a very gifted player. He gave Tottenham a lot of problems. Hopefully he can be like Rafa in a couple of months.
"He will learn and will be one of the best players in the Premier League."