England boss Fabio Capello admits he has no idea why Manchester United striker Wayne Rooney is in such poor form at the World Cup. Rooney was again flat for last night's 0-0 draw with Algeria.

Capello is at a loss to explain the striker's alarming loss of form.

He said: "I don't know. I don't like to speak about one player, the performance of one player. I prefer to speak about the performance of the team.

"But yes Rooney didn't play like Rooney, but it's not just his problem."