LONDON, Dec. 26 (Xinhua) -- Manchester United manager Alex Ferguson said on Monday that defender Jonny Evans will be out of action for two weeks after suffering a calf injury during the champions' 5-0 win over Wigan on Monday.

Ferguson also said after the match that Evans will not make the New Year's Eve encounter with Blackburn.

"Jonny came off injured. He has a calf injury and will be out for two weeks," Ferguson said.

"We have had a nightmare the last few days. Phil Jones and Chris Smalling have both been ill. Rio Ferdinand called off yesterday with a back injury and Jonny Evans has come off at half-time. It does put you under pressure," he said.