Liverpool captain Steven Gerrard could miss the rest of the season, should he require surgery on his injured groin.Kenny Dalglish’s side play Sporting Braga in the Europa League last 16 on Thursday, but the Reds boss confirmed Gerrard is facing a long lay-off.The club will decide on Friday whether the England international will go under the knife.”For Steven and us, it’s a niggling problem to which we have to find a solution,” Dalglish said.”Hopefully, it will be cleared up and he will be available for most matches. But everyone has to be carefully managed, whether they’re fully fit or slightly fit.””That’s why we have a squad of players, because sometimes the most important ones are those who don’t play as often as they’d like.””There’s no way we will speculate about any player, especially Steven. It’s a problem that is minimal but needs to be fixed.”Gerrard has not travelled to Portugal with the squad, and the midfielder’s fitness query leaves a doubt over whether he will appear for England against Wales in their Euro 2012 qualifier at Millennium Stadium this month.