Liverpool striker Fernando Torres is set to visit a specialist over his knee injury.
The Reds top scorer was forced to miss the goalless Premier League draw with Fulham because of the problem.
Manager Rafael Benitez said: "He has a problem with his knee and has gone to see a specialist. We are waiting for news.
"We don't know really, it depends on the specialists.
"He had a problem before and we were trying to protect him."