Wayne Rooney scored his hundredth goal Premier League Manchester United as the gap behind leaders Chelsea reduced to one point after a comfortable 3-1 victory at Arsenal.

Manuel Almunia, Arsenal goalkeeper had Nani’s deflected cross into his own net to give United the lead on 33 minutes before half Rooney added a nice counter-attack after four minutes later.

Nani was again the provider, sprinting clear to track the ball and in front of Rooney, who swept in his 22: e goal of the season, low in the corner.

It was worse for Arsenal on 41 minutes when the couple back together, but Nani burned his shot wide after more good work from Rooney down left.As Arsenal struggled to find a way back into the game, Alexandre Song was just unlucky to fire next goal after working his way into the United box in the first half of the stop time.

But it was almost game over on 52 minutes when United scored the third after another attack against simple as Park Ji-Sung broke clear, Fletcher Arsenal crashed chip in half and slotted past Almunia from just inside the box.

Thomas Vermaelen pulled one back with an acrobatic volley from Wes Brown that deviate past Edwin van der Sar creating a crazy finish.

But United, who looked dangerous on the break, held on to complete a league double over their title rivals.