Nick Kyrgios fights back from brink of defeat to stun Rafael Nadal in Mexico

Nick Kyrgios enjoyed his biggest win in two years, saving three match points to down world No 2 Rafael Nadal at the Mexican Open. In a match of the highest quality, the Australian triumphed 3-6, 7-6 (7-2), 7-6 (8-6) in three hours and three minutes.

He joins fellow Australians Alex de Minaur and John Millman in the quarter-finals at Acapulco.

Criticised for a perceived lack of effort in some matches this year, Kyrgios stayed focused after giving up the opening set. He saved nine break points throughout the match including coming back from 0-40 positions in the final two sets.

Nadal, who was not broken in the match, looked set to triumph when up 6-3 in the deciding tiebreaker. But Kyrgios saved three match points, including one with a lunging volley that hit the net cord and just landed in. He will take on Stan Wawrinka for a spot in the semi-finals.

Meanwhile, Millman moved through to he last eight with an emphatic straight-sets victory over German Peter Gojowczyk. Millman blitzed the world No 87, 6-0, 6-2, at one stage winning eight games in succession.

The world No 44 converted six break points and delivered the contest’s only two aces to set up a quarter-final clash with third-seed John Isner. Big-serving American Isner eliminated compatriot Sam Querrey 6-4 6-4.

Millman’s win was his second comfortable triumph – the eighth seed beat Spaniard Marcel Granollers 6-3, 6-4 in the opening round.

Fifth seed Alex de Minaur boosted Australia’s presence in the quarter-finals when Feliciano Lopez (Spain) withdrew before their second round match. Wawrinka also beat seventh-seeded American Steve Johnson 7-6 (7-5) 6-4 to progress to the last eight.