Liverpool midfielder Dietmar Hamann will miss both legs of the Champions League quarter-final against Juventus with a knee injury.
German Hamann, 31, is out for a month after damaging medial ligaments in the Merseyside derby win over Everton.
Manager Rafael Benitez told Liverpool's website: "Didi has a ligament problem and usually it takes four weeks.
"I now have a book of injuries and we need to look at some of the youngsters who did so well in the Carling Cup."
Hamann is also expected to miss vital Premiership games in Liverpool's run-in against Bolton, Manchester City and Tottenham.
The German international adds to an injury list which includes midfielders Xabi Alonso and Harry Kewell, although Djimi Traore is expected to return in time for the Bolton game.
Igor Biscan is expected to deputise for Hamann with Xabi Alonso still at least two weeks from a return.
And Benitez will be hoping the likes of Gerrard and Luis Garcia return from international action unscathed with Premiership and Champions League commitments mounting up.
The Liverpool boss said: "I can plan to use players but I have to make sure they come back from their national team fit.
"I need to wait and keep my fingers crossed. If I say I want to play with Luis Garcia and Gerrard as attackers I may find both are unavailable."