Andy Murray limps off court in Newport after beating Wimbledon doubles champion

After an early exit from Wimbledon, Andy Murray decided to extend his grass-court season by taking part in the Hall of Fame Open this week.

The Scot reached the quarter-finals of the Newport event after a comeback victory against Max Purcell, but it's unclear whether he's fit to continue after he limped off court.

The former world No.1 was evidently struggling throughout, but showed plenty of determination and grit to win 12 of the final 13 games to seal a 4-6 6-2 6-1 win over the Australian.

The injury looked to worsen in the second set and Murray was limping heavily at the end of the match, which will likely curb what would have been realistic ambitions of going even deeper in a tournament that is missing most of the biggest names on the tour, with world number nine Felix Auger-Aliassime the top seed.

Third seed Alexander Bublik is next up in the last eight if Murray is fit.

It could have been a much shorter day's work for the 35-year-old had he converted four break points in Purcell's opening service game.

The Australian held, though, and then rattled off four more successive games to lead 5-1 in the first set.

Murray made a fight of it and won the three next games before Purcell eventually served the set out to take it 6-4.

When the Scot was broken in a marathon first game of the second set, the writing looked on the wall, especially when Purcell consolidated the break to go 2-0 up.

But his fighting instincts came to the fore, taking complete control of the match, reeling off 12 of the next 13 games to get the win.