Joe Cole could miss out on playing against former club Chelsea next weekend after hobbling out of Liverpool's win at Bolton on Sunday.
A hamstring injury led to his withdrawal just past the hour mark as Liverpool moved out of the drop zone courtesy of Maxi Rodriguez's late winner.
The club do not feel the problem is serious but his ability to train this week is likely to be affected.
Manager Roy Hodgson said: "He has a slight hamstring injury and we don't know the extent of it until after he has a scan."
The experience is a new one to Cole having never suffered such a muscle injury in his career. Having already served a three-match ban this season, it is also another setback as he attempts to establish himself at Anfield.
The Reds could be boosted for the visit of the champions and league leaders by the return of Dirk Kuyt.
The Dutchman has made a rapid recovery from an ankle injury sustained on international duty earlier this month.
"I think he will be available to be in the squad against Chelsea, but whether he is fit enough to play remains to be seen," Hodgson said.
"I think he will return to training towards the latter part of the week and then it is a question of seeing how well he can cope."
Another former Chelsea player, Glen Johnson, is also expected to be available after a thigh strain.