Former Wimbledon champion Andy Murray has admitted that he is "not quite sure" how he managed to fight back in the final set to seal victory over Grigor Dimitrov in the third round of the Cincinnati Masters.

The Scotsman survived match point and came from 5-2 down in the final set to win the match 4-6 7-6(3) 7-5.

"There were many, many important points in that match," BBC Sport quotes Murray as saying. "I'm not quite sure how I managed to get through it."

Murray will take on Richard Gasquet in the next round.