Manchester United boss Sir Alex Ferguson admits Phil Jones is a doubt for the return-leg of their Champions League clash with Real Madrid.

Ferguson says he is undergoing intense treatment but accepts he may not be ready for the second leg against Real at Old Trafford.

He said: "We are working very hard. He has an outside chance for Madrid - but no more than that.

"He is a young man who went into a tackle too brave and was a bit off-balanced.

"He certainly won't be fit for the weekend."