For tomorrow's FA Cup third-round replay visit of West Ham, the United manager could also be without Jonny Evans, who suffered a hamstring problem on Saturday. Although United were unable to confirm the nature of the injuries sustained against Liverpool, each is thought to be a knee problem. Vidic is only four games into a return from a second serious knee injury suffered during the past 13 months and he admitted recently that United's medical department is carefully choosing which games he plays during the first months of his comeback.
The captain appeared to have a problem after an aerial challenge on 65 minutes in which he also clashed heads but played on until he was replaced by Chris Smalling 10 minutes from the end. Young was substituted at half-time following his heavy tackle on Daniel Agger just past the half-hour that caused his injury.Vidic's goal 10 minutes after the interval turned out to be the winner, doubling the lead Robin van Persie gave United in the first half. Daniel Sturridge's second goal for Liverpool came moments after Vidic had deflected Patrice Evra header into the net.
