Manchester United won the pre-seasom Amsterdam Tournament after beating Ajax 1-0 last night but paid a heavy price.

United's costly new signing, England midfielder Michael Carrick, suffered an ankle injury and left the ground on crutches. Manager Alex Ferguson told Sky News: "He's going to be out for a few weeks."

Carrick was making only his second appearance for United since completing an £18.6 million sterling (€27.5 million) move from Tottenham on Monday.

The midfielder lasted just 16 minutes before being helped off after sustaining the injury.

The winning goal came from a free kick 14 minutes from time by Ryan Giggs. The ball hit the bar and bounced back into play but the assistant referee ruled it had crossed the line.

On Friday, United beat Porto 3-1 but had both Wayne Rooney and Paul Scholes sent off.

On Saturday, Inter Milan scored three first half goals to beat Porto 3-2 to finish second in the tournament.