London - Arsenal midfielder Jack Wilshere has suffered an ankle injury that will keep him out of action for up to three weeks, manager Arsene Wenger revealed on Tuesday.
The 21-year-old missed the whole of last season with ankle and knee problems, before returning to action in October.
He has impressed since then but his latest injury will rule him out of Arsenal's Champions League clash at Bayern Munich on Wednesday, as well as the forthcoming Premier League meeting with Swansea City.
He will also miss England's World Cup qualifying double-header against San Marino and Montenegro later this month.
"Jack Wilshere is out," Wenger said. "He has an inflamed ankle; the other ankle to the one he injured (last season). He will be out for three weeks and will not be available for Munich, Swansea, and not for England."
In addition, Arsenal must do without forward Lukas Podolski against Bayern, after he was left out of the squad with an ankle problem.
However, left-back Kieran Gibbs is fit to return after a thigh injury, while midfielders Abou Diaby and Andrey Arshavin were also included in the travelling party.