FA CUP Semi Final -Watford 1 Man Utd 4

Manchester United stayed on course for the treble by booking their place in the FA Cup final at the new Wembley with an emphatic win over Watford.

United struck with Wayne Rooney's 20-yard drive (7), but were stunned by Hameur Bouazza's hooked volley (26).

Cristiano Ronaldo added a second (28) from close range, with Rooney (66) and substitute Kieran Richardson's late chip sealing the victory (82).

Watford: Lee, Mariappa (Doyley 88), Carlisle, DeMerit, Mackay, Chambers (Kabba 70), T Smith, Mahon, Francis, Bouazza, Priskin (King 78). Goal: Bouazza 26

Man Utd: Van der S, Evra, Ferdinand (Fletcher 40), Brown, Heinze, Ronaldo (Richardson 77), Carrick, Giggs (Solskjaer 83), A Smith, Rooney. Goals: Rooney 7, 66, Ronaldo 28, Richardson 82 Ref: H Webb Att: 37,425

Sir Alex Ferguson hailed his side's FA Cup semi-final win over Watford as just as impressive as their midweek mauling of Roma in the Champions League.

A brace from Wayne Rooney helped United on their way and keeps them on course to win the treble this season.

Ferguson told Sky Sports: "It was a fantastic performance, as good as the Roma one in terms of the endurance of the team - I was so proud of them."

Watford boss Adrian Boothroyd insisted Manchester United were flattered by the margin of their FA Cup semi-final win.

The Premiership's basement side briefly levelled in the first-half, but found United too strong in the end.

Boothroyd said: "I asked them to come off the pitch having let United know they were in a game and they did that. It was not as one-sided as the score suggests and we had them rattled."