Andy Murray is set for an “extended spell” on the sidelines after he suffered a serious ankle injury during his defeat to Tomas Machac at the Miami Open.

Murray lost a marathon encounter with the Czech player but has seemingly left America with a more significant issue.

During the 10th game of the final set, Murray collapsed to the floor after he hurt his ankle when racing towards the net.

The 36-year-old, who is set to retire from tennis later this year, has now confirmed the severity of his injury with both his Anterior Talo-Fubular ligament (ATFL) and Calcaneofibular ligament (CFL) ruptured.