By Samuel Meade Andy Murray will miss the next two tournaments after picking up an ankle injury at the Miami Open. The Scot is in the twilight period of his playing days and has openly spoken about retiring sooner rather than later. He enjoyed an impressive recent run at the Florida tournament, where he was eventually beaten in a final set tiebreak by Tomas Machac. Earlier in the contest though Murray chased down a ball but pulled up, screaming in pain before he hit the floor clutching his left ankle. The three-time Grand Slam winner managed to continue but later said he feared he had ruptured…