David Beckham has warned AC Milan teammates that Manchester United's players are "natural born winners".

Beckham claims United will test Milan again tomorrow and has warned his team-mates that the Reds will keep pushing until the final whistle.

"It doesn't matter whether there is half the game left or two minutes left, United players are born and brought up to believe they can win even with a minute left," he said.

"They have that mentality, which makes it extremely hard for anyone to beat them.

"Nobody comes to Old Trafford and gets given gifts. We're going to have to work hard and play well if we're to have a chance."