Darren Fletcher says Manchester United cannot afford to relax, despite leading the table by six points.

Fletcher insists that it is important to keep setting a breathless pace in the title race.

"It feels good to be six points clear," he said. "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 can't take it for granted.

"It is important that we keep pushing on and really putting pressure on Manchester City."