Andy Murray comes from behind to beat Gilles Simon in Vienna

The Briton bounced back from losing the the first set to register a 4-6 6-2 6-2 victory in just over two hours and 40 minutes, and will now face American John Isner in the last eight.

Murray will make it three tournament triumphs this month, following on from the China Open and Shanghai Masters, should he win the Vienna title.

And if he can keep in form, he could still move up a place and be world number one for the first time in his career before the end of the year, such is the points situation between him and Novak Djokovic, who is not playing this week.

The Wimbledon and Olympic champion looked in trouble in the first set as world number 24 Simon responded to being broken in the opening game by winning the next four in a row, with a third break then sealing the set.

But Murray then dug deep to claim a second set that saw him win each of the last four games.

And after Simon required courtside treatment for blistering on a foot, Murray completed the job in the third, again taking the final four games.