The Red Devils sit nine points clear of second-placed crosstown rivals Manchester City but the striker is aware that the competitive nature of England's top flight can still make anything happen.
"Results are the most important thing now," he said. "Look at Manchester City against QPR. They should have got the win, had a lot of chances but ended up dropping two points.
"That could quite easily have happened to us against Southampton the following night. It proves we have to keep picking up the points when we can.
"Once it comes down to the last four or five games, then we will see what position we are in and work out what we have to do."