Fletcher confident Man Utd won't take leadership for granted
Having blown an eight-point lead in the space of four matches at the end of last term, no-one at United will be celebrating until the trophy has been returned to Old Trafford.
"It feels good to be six points clear," said Fletcher ahead of their trip to Sunderland.
"It was good to win the derby, especially after what happened last year but it is important that we kick on and think just because we beat Manchester City and are six points clear we take it for granted.
"We have to keep pushing on and putting pressure on City."