Nemanja Vidic hasn’t played for Manchester United since the opening day of the season against West Brom.

Jonny Evans, Chris Smalling and Phil Jones have all played their part in defence since, but after playing 90 minutes for Serbia this week, Sir Alex Ferguson is wondering whether Vidic is ready to start against Liverpool tomorrow.

“The big question mark is whether Vidic is ready,” he said. “He has his first game for Serbia on Tuesday. It’s certainly a consideration because he’s such a great competitor. He came in yesterday and felt OK. But the Liverpool game is such an intense, stamina-draining game that you want everyone to be 100 per cent so it might be more down to how he feels himself. Jonny Evans’ form has been absolutely brilliant so I don’t have any real concerns about who I play because they’re all playing particularly well.”