England coach Fabio Capello admits Tottenham fullback Kyle Walker does need to improve his defending.

For victory over Sweden, Walker was named best afield.

"Technically he is very good," said Capello.

"He is really fast and always plays with confidence.

"He takes a risk and he needs to understand when you play against the really important countries for the seniors, you need to be careful sometimes.

"But he will improve."