Defending champion Jannik Sinner was not at his fluent best but still had too much firepower for unseeded American Marcos Giron as he sealed a 6-3 6-4 6-2 win and reached the fourth round of the Australian Open on Saturday.

Ruthless defending champion Jannik Sinner was in the zone Saturday as he powered into the last 16 of the Australian Open with a straight-sets thrashing of American Marcos Giron.The Italian world number one dropped a set for the first time in 14 matches in his second-round clash against Australian wildcard Tristan Schoolkate.

Jannik Sinner (No. 1 ranking) will take on Marcos Giron (No. 46) in the Round of 32 of the Australian Open on Friday, January 17.Sinner earned a four-set victory over Tristan Schoolkate (4-6, 6-4,

World No. 1 men's singles tennis ace, Jannik Sinner, has made it to the fourth round of the Australian Open. The defending champion showed a lot of composure in a 6-3, 6-4, 6-2 win over Marcos Giron in the third round on Saturday. Sinner bossed the show on the Rod Laver Arena, reaching the 4th round at AO for the 4th time. Here's more.

Australian Open top seed and defending champion Jannik Sinner beat Marcos Giron with the minimum of fuss at Rod Laver Arena on Saturday.

World no. 1 Jannik Sinner extended his winning streak at hard-court Majors. The Italian faced Marcos Giron in the third round of the Australian Open at Rod Laver Arena and scored a 6-3, 6-4, 6-2 in two hours and one minutes.

Defending champion Jannik Sinner’s consecutive-sets streak ended in the second round of the Australian Open on Thursday night, but he advanced with a 4-6, 6-4, 6-1, 6-3 victory over wild-card entry Tristan Schoolkate.