Defending champ Jannik Sinner drops set for first time since October, but rallies for win; American Danielle Collins plays villain while advancing.

Jannik Sinner left the Australian Open fans in stitches as he talked through his pre and post-match routines at the Australian Open. The defending champion booked his spot in the second week, beating Marcos Giron 6-3 6-4 6-2 and spoke to Jim Courier during his on-court interview, where he was asked about his working hours on match day.

Jannik Sinner has started his Australian Open title defense with a challenging win over No. 35-ranked Nicolas Jarry.

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.

He's also got his young rival, Jannik Sinner, in mind ... a day before the start of the Australian Open. “That, I think, is great for me: Having him (and) such a great rivalry, so far ...

MELBOURNE, Australia (AP) — Here are some of the top men at the Australian Open, which starts at Melbourne Park on Sunday morning local time (Saturday night EST), with money-line odds via BetMGM ...

Jannik Sinner quickly reverted to what’s been working for him and finished off a straight-set win over Nicolas Jarry to begin his Australian Open title defense. The 7-6 (2), 7-6 (5), 6-1 victory ...

Was 20-0 in semifinals or finals at the Australian Open until last year's loss to Jannik Sinner in the final four. ... 10 trophies in Melbourne are the most for a man. ... Won just one title in ...

Highlights of the seventh day of the Australian Open on Saturday (times GMT): 1018 SINNER BREEZES PAST GIRON World number one and defending champion Jannik Sinner eased past American Marcos Giron 6-3 6-4 6-2 in just two hours to reach the last 16.

Italian Sinner coasted to a 6-3 6-4 6-2 win over American Giron to secure his passage into the fourth round of the year's first grand slam.

Jannik Sinner and Elina Svitolina won their respective Round 3 matches and advanced to the pre-quarters. While Sinner beat Marcos Giron in straight sets, Svitolina got the better of Jasmine Paolini.