LONDON (AP) — Two-time Wimbledon champion Andy Murray will play only doubles at his last appearance at the All England Club after back surgery. The 37-year-old Murray withdrew from the singles competition hours before he was supposed to play in the first round on Tuesday. “Unfortunately, despite working incredibly hard on his recovery since his operation just over a week ago, Andy has taken the very difficult decision not to play the singles this year,” his management team said in a statement.