Britain's Andy Murray will be out for an "extended period" after seriously injuring his ankle. The 36-year-old suffered the injury during his third-round exit at the Miami Open on Sunday.

Murray left the court, visibly in great pain, at the end of the match, after being beaten by the Czech Tomas Machac 5-7, 7-5, 7/6 (7/5) The Scot, who will be 37 years old in May, has already indicated that he will retire “longer after this summer”