Arsenal boss Arsene Wenger insists he is unconcerned over Theo Walcott's injury problems.

The England international is currently sidelined with a rib injury but, while Wenger would prefer to have the striker available, he is not concerned about his long-term fitness.

"I believe between 19 and 22 you have players who go through periods like that," he told arsenal.com.

"The body settles and stabilises and finds a balance to cope with all the stress you face in top-level competition.

"I am not concerned over a longer period. In the short term I would like him to be available."