Arsenal boss Arsene Wenger fears he may have rushed back Theo Walcott too soon.

After victory over Manchester City on Saturday, Walcott was left clutching an ice pack to his tender right knee having left the field after a tussle with Pablo Zabaleta. The England winger is confident he will be fit but Wenger is more concerned about the injury, which ruled him out of England's recent games.

"I am a bit worried," said the Arsenal boss. "The last time it was an over-stretch of his knee and he had some blood in there. Maybe it's not completely healed yet. Maybe we brought him back too soon."