Andy Murray did not expect to be firing on all cylinders at the Monte Carlo Masters this week after a five-week absence due to an elbow injury, but that did not stop the world No 1 from feeling a sense of frustration after letting slip a golden opportunity to reach the quarter-finals.

Murray was just two games away from progressing when he moved 4-0 ahead with a double break in the deciding set of his third-round match with Albert Ramos-Vinolas, the world No 24 of Spain, and even had two break points for a 5-1 lead.

The irritation at failing to take his chances was evident when Murray later wasted no time in picking up his racket bag and leaving the court after somehow losing