Fulham attacker Bryan Ruiz is out for the season with a broken foot.
The Costa Rica international was injured in Saturday's 3-0 win at Bolton and had to be carried off after 73 minutes.
Fulham manager Martin Jol suggested after the game Ruiz had broken a metatarsal and has now confirmed the injury.
Speaking after the 1-1 draw with west London rivals Chelsea, he said: "He broke his foot so he will be out until June or July. It is a metatarsal issue."