Defending champion Jannik Sinner has defeated 46th-ranked Marcos Giron of the U.S. 6-3, 6-4, 6-2 at the Australian Open.

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

Sinner faces Holger Rune in the fourth round of the Australian Open at 10:00 p.m. EST tonight. Fans can expect to see him wear his Snoopy-ish night outfit. Tennis fans can follow Sports Illustrated's Serve on SI for all the most important news from the sport.

Jannik Sinner beat Alexander Zverev in three sets for his second Australian Open title in a row. Read more on Boston.com.

Dominant Jannik Sinner wins Australian Open again as Alexander Zverev ‘not good enough’ - live - Sinner won his second Australian Open with a 6-3 7-6 (4) 6-3 victory to deny Zverev his grand slam titl

Italian prodigy Jannik Sinner clinches his third Grand Slam, showcasing his unparalleled precision and aggressive gameplay in a stellar Australian Open final.