The Spanish defender/midfielder/winger picked up a hamstring strain during the Reds game at West Ham on Sunday and may well not be risked at Anfield.
"I am okay but I don't know if I'll be ready for the game," he told the club's official site. "It's nothing bad but I don't know if I'll be able to play.
"I've had some treatment and then we will see. I hope I can be fit for the game."