Defending champion Andy Murray, who was hampered by a hip injury, suffered a shock quarter-final exit to American Sam Querrey at Wimbledon on Wednesday.Murray’s hopes of becoming the first Briton to retain a grand slam title since Fred Perry in 1936 evaporated as he hobbled helplessly to a 3-6 6-4 6-7(4) 6-1 6-1 defeat on a stunned Centre Court.

Querrey reached the first grand slam semi-final of his career and will meet Croatian Marin Cilic, who also needed five sets to end 16th-seeded Luxembourger Gilles Muller’s run at the championships.

Muller, who beat Rafael Nadal in a marathon five-set match in the fourth round, took the first set but Cilic recovered to win 3-6 7-6(6) 7-5 5-7 6-1 after three hours and 30 minutes of play on Court One.

Murray will retain his world number one status next week after second seed Novak Djokovic was forced to withdraw with an elbow injury during his quarter-final match against Czech Tomas Berdych.

Second seed Djokovic, who needed to win the title to return to the top of the rankings, was 7-6(2) 2-0 down when he shook Berdych’s hand to concede defeat.

Seven-time champion Roger Federer needed just under two hours to see off Canadian Milos Raonic 6-4 6-2 7-6(4) to set up a final four meeting with 11th seed Berdych.Third seed Federer was in top form as he recorded 46 winners on his way to a 12th semi-final at the championships.

Report by Miyen Akiri