Fellaini scores winner as United wins final preseason friendly vs. Valencia

Manchester United wins final preseason friendly vs. Valencia behind Marouane Fellaini's last-minute winner

Marouane Fellaini scored Manchester United's winner at Old Trafford vs. Valencia.

Matthew Peters / Manchester United

Marouane Fellaini grabbed a last-minute winner as Manchester United warmed up for the Premier League with a 2-1 victory over Valencia.

The Belgian, who has had a tough time at Old Trafford since he was signed by David Moyes nearly a year ago, pounced on a defensive mistake in injury time to ensure the Reds finished their pre-season programme unbeaten. Darren Fletcher had put United ahead early in the second half, after Wayne Rooney had missed a penalty before the break.

Rodrigo equalized in Valencia's best spell, but just as the friendly looked to be drifting to a draw, substitute Fellaini pounced for the deciding goal.

Louis van Gaal's first game in charge at Old Trafford saw the Dutchman unveil the 3-5-2 system that served him well so far in preseason, but although United looked comfortable the game only came to life as a contest when Rooney struck his spot kick against the base of the post having been clipped going for an Ashley Young cross.

Fletcher put United ahead with a deflected shot from the 'D' on the edge of the box, but the Spanish side enjoyed a good spell midway through the second half, with Javier Hernandez heading a Rodrigo header off the line. Valencia's former Bolton striker pounced when a Tom Cleverley clearance from a corner looped back over the defence, and seconds later Vinicius Araujo was inches away from getting a touch inside the six-yard box.

But Fellaini, one of a swathe of replacements, took full advantage when a defender and goalkeeper Diego Alves collided in stoppage time to roll the ball home with almost the last kick of the match.

Download the new FOX Sports App to get the latest news and scores from your Soccer team.