The England striker sees his future at Old Trafford.
"Yes, I'm delighted to be at Manchester United for the next few years, but that doesn't mean I'm going to sit back and rest. I'm going to keep working hard for my place in the team. To be playing here is a dream for lots of Mancunian lads like me and many other kids around the world. I'm happy and I'm determined not to let anybody down," he told manutd.com.