Marcos Giron at the 2025 Adelaide International (Source: Getty) Sinner will be confident about defending his title at the Melbourne Major, given his current form and dominance across hardcourts.

Item 1 of 3 Tennis - Australian Open - Melbourne Park, Melbourne, Australia - January 18, 2025 Italy's Jannik Sinner in action during his third round match against Marcos Giron of the U.S. REUTERS ...

IJannik Sinner of Italy plays a backhand return to Marcos Giron of the U.S. during their third round match at the Australian Open tennis championship in Melbourne, Australia, Saturday, Jan. 18, 2025.

He hit 35 winners and eight aces against Giron, but also made 37 unforced errors. "Every match has its own difficulties. I still have room to improve, but every win is great," said 23-year-old Sinner.

Preview the the 2025 Terra Wortmann Open match between Marcos Giron vs. Alexander Zverev, plus betting odds, insights and head-to-head-stats.

Preview the the 2025 Rothesay International Eastbourne match between Luciano Darderi vs. Marcos Giron, plus betting odds, ...

Sinner 6-3 5-3 Giron* What a shot that is from Jannik Sinner, a powerful return of Marcos Giron's serve into the back corner. All of a sudden, from 40-15, we're at deuce.

World number one Jannik Sinner advanced to the Australian Open last 16, defeating American Marcos Giron in straight sets in Melbourne. Ruthless Sinner, who remains on a 17-match winning streak ...

Marcos Giron was born in the outskirts of Los Angeles on July 24, 1993. ... January 18, from 9:00 AM (first match of the evening session) at the Rod Laver Arena in Melbourne.

MELBOURNE : 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 ...

Tennis - Australian Open - Melbourne Park, Melbourne, Australia - January 18, 2025 Italy's Jannik Sinner in action during his third round match against Marcos Giron of the U.S. REUTERS/Kim Kyung-Hoon ...