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

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.

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 number one Jannik Sinner has now claimed 64 match wins at the majors, which moves him clear of Andreas Seppi (63) for the outright second most of any Italian in the Open Era, behind only Fabio F

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 — Just as it did 12 months ago, the tennis gods gave the Australian Open the men’s singles draw it craved. On the steps of Margaret Court Arena, Jannik Sinner and Carlos ...

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.

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 ...

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.