Arsenal forward Theo Walcott has been ruled out for six month with a knee injury, the club announced on Monday. "After coming off injured in Saturday's 2-0 win against Tottenham Hotspur, the Club regrettably announces that Theo Walcott has sustained a ruptured anterior cruciate ligament of his left knee," a statement read on the club website. "Theo will have surgery in London in the near future and is expected to be out for at least six months, therefore missing the remainder of the season and the World Cup in Brazil in the summer," the statement added. More details soon … (For more sports news and updates, follow Ahram OnlineSports on Twitter at@AO_Sportsand on Facebook atAhramOnlineSports.) http://english.ahram.org.eg/News/91006.aspx