Theo Walcott injury blow for Arsenal and as winger is ruled out for six weeks

Arsenal have confirmed that winger Theo Walcott will be sidelined for up to six weeks with an ankle injury he sustained on international duty with England. Walcott collected the injury during England's 3-1 win over Switzerland on Tuesday night and leaves Arsenal in the midst of an injury crisis ahead of their clash with Bolton this weekend. Arsenal manager Arsene Wenger confirmed that Walcott, 21, would be missing for up to six weeks. 'The tackle looked quite bad,' said Wenger. 'When you see how it turned his ankle I thought it would be three or four days or it would be four to six weeks. Unfortunately it will be four to six weeks.' Cruel blow: Walcott was injured in the early stages of England's win in Basle Walcott has been in flying form since Capello dumped him from his ill-fated World Cup squad, scoring four goals in three Premier League games for Arsenal and finally nailing down a regular first-team slot in Wenger's side after several injury-interrupted seasons. Walcott has also started all three of England's internationals this season, and will miss his country's next Euro 2012 qualifier, against Montenegro at Wembley on October 12. Flying: The winger had been in magnificent form for Arsenal The loss of Walcott is another blow to Gunners manager Wenger, who has seen Holland striker Robin van Persie sidelined until the middle of next month with an ankle problem.  Arsenal hold aces in chase for Lukaku after keeping tabs on younger brotherSign up to our FREE Fantasy Football game - with £40,000 in prize money up for grabsSquillaci tells Wenger he is ready for Premier League bow against BoltonVan Persie injury rocks Arsenal as Dutch striker is ruled out for six weeksARSENAL FC