Defending champion Jannik Sinner beat 46th-ranked Marcos Giron of the U.S. 6-3, 6-4, 6-2 at the Australian Open on Saturday night, reaching the fourth round at Melbourne Park for the fourth time.

Jannik Sinner says he "still has room to improve" in his Australian Open title defence after beating Marcos Giron to reach ... won his first major at Melbourne Park at the start of a remarkable ...

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Marcos Giron, the ATP World ranked No. 45 ... culminating in the run to the third round in Melbourne, where he eventually succumbed to Argentinian Tomas Martin Etcheverry over five sets.

a tune-up event to the Melbourne Slam, the 24-year-old had to eke out a 1-6, 6-4, 7-5 win over France's Arthur Cazaux to reach the quarterfinals of the ATP 250 tournament. Giron, meanwhile ...

Jannik Sinner beats Marcus Giron 6-3 6-4 6-2 to reach fourth round ... to listen to BBC Radio 5 Sports Extra commentary from Melbourne Park (UK only) Jess Anderson, Paul Battison and Ros Satar ...