Arsenal boss Arsene Wenger has blamed England's U21 Euros campaign for Theo Walcott's latest injury setback.

Wenger said: "Theo will not be available for the United game. It will be a problem for England as well."

Wenger blamed the FA's decision to include Walcott in the Under-21 squad for this summer's European Championships.

The Gunners boss added: "The player comes back late, you play him earlier than you should, he gets injured and you see him again in October."