Sir Alex Ferguson is hoping two of Rio Ferdinand, Wayne Rooney and Edwin van der Sar will be fit for Manchester United's FA Cup tie against Liverpool.
The trio sat out United's 2-1 win over Stoke City on Tuesday night as Ferguson did not want to gamble on the players' fitness.
Rooney had picked up an ankle knock in the New Year's Day victory over West Bromwich Albion, while Ferdinand was rested after playing an integral part in the busy festive fixtures.
Veteran goalkeeper Van der Sar, meanwhile, has missed the last two games and has been replaced by Tomasz Kuszczak in the starting line-up.
Though Ferguson is slightly concerned about their fitness, the United boss hopes to call on at least two of the players for Sunday's third round clash with arch-rivals Liverpool.
"The three of them are a bit of a worry," said Ferguson.
"We're hopeful we can get at least two of them ready for Sunday."
Meanwhile, Ferguson believes defender Jonny Evans is starting to recapture his best form after not playing for United since the 4-0 Carling Cup defeat at West Ham in late November.
He added: "Jonny had a fantastic season last season and he's starting to come into form again.
"His training performances have been absolutely superb in the last few weeks."