O'Shea fears Duff threat

John O’Shea has warned Manchester United they must pay special attention to his Republic of Ireland team-mate Damien Duff if they are to dump Chelsea out of the Carling Cup at Old Trafford tonight.

Duff was a muted presence in the home ranks at Stamford Bridge a fortnight ago when United ground out a 0-0 first leg draw that gives them the slightest of edges going in to the semi-final decider.