Manchester United midfielder Darren Fletcher rates Chelsea's Frank Lampard as his toughest opponent.

Fletcher is quickly emerging as one of Europe's best midfielders.

And he told United We Stand: "I love the challenge of playing against the best players in the world. Lampard is the one who stands out in the Premiership. His movement is outstanding for such a big lad.

"He's fit, runs all day, but if you turn your back and he gets blindside of you he's gone. You have to be so aware of him for the whole game, concentrating 100 per cent.

"You can't watch the ball; you have to watch the player. Lose your concentration and switch off and he will punish you.

"When we play against Chelsea, the manager asks me to get against him and stop him. Stop those runs into the box. I've managed to do that."