Conditions 'tough' in home win - Ferguson

Sir Alex Ferguson admits the conditions at Old Trafford made it "tough going" as Manchester United beat West Bromwich Albion 2-0.

Ferguson praised West Brom's "great resolve" and admitted the visitors "dominated periods" of the second half.

Robin Van Persie came on as a second-half substitute and Ferguson says he "changed the game", his 17th goal of the season ensuring United remain seven points clear at the top of the Premier League.

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