|2018 Australian Open|
|Dates: 15-28 January Venue: Melbourne Park|
|Coverage: Watch highlights on BBC Two, the BBC Sport website and app. Live commentary on the best matches on BBC Radio 5 live, 5 live sports extra and online.|
Number one seed Rafael Nadal progressed to the quarter-finals of the Australian Open by seeing off Argentina’s Diego Schwartzman in four sets.
Nadal, 31, won 6-3 6-7 (4-7) 6-3 6-3 on Rod Laver Arena to set up a last-eight meeting with Croatia’s Marin Cilic.
Schwartzman, the 24th seed, proved Nadal’s trickiest opponent so far, taking a first set of the tournament off the 16-time Grand Slam champion.
But Nadal powered through the final two sets to win in three hours, 51 minutes.
“It was a great battle. He is a good friend of mine,” said Nadal
“He is a great player, in all aspects, and I feel that for a lot of moments he was serving well.
“I was able to keep fighting until the end and it is the first big match I have played in 2018. It probably helps my confidence, knowing I can resist almost four hours on court.”
Sixth seed Cilic earned his place in the quarter-finals with a 6-7 (7-2) 6-3 7-6 (7-0) 7-6 (7-3) victory over Spain’s 10th seed Pablo Carreno Busta.