Arsenal have confirmed on their official website (www.arsenal.com) that Theo Walcott will be ruled out for at least six months, after picking up an injury in Arsenal's 2-0 victory over Tottenham in the F.A. Cup third round.
The 24 year old was originally projected to miss just four weeks, but after a scan of his left knee revealed that Walcott has sustained a rupture to his anterior cruciate ligament. Walcott will have surgery on his knee in London "in the near future" according to an official club statement.
Due to the severity of the injury, Theo Walcott will unfortunately miss the 2014 World Cup in Brazil, as well as the remainder of the Premier League season.
Arsenal have wished the wide player a "speedy recovery":
"Everyone at Arsenal wishes Theo [Walcott] a speedy recovery and we look forward to seeing him back on a football pitch as soon as possible."
