Tommy paulin

Italian Jannik Sinner: World No. 1 Italian Jannik Sinner battled past home favorite Tommy Paulin in a fourth round match to enter the US Open quarterfinals in Tuesday.

Paul roared on by a raucous American crowd, gave top-seeded Sinner all he could handle for two sets before the Italian created some late separation to seal a 7-6(3), 7-6(5), 6-1 victory.

Sinner is now the only man this year to reach the quarterfinals at all four Grand Slams. The 23-year-old won his maiden major title at the Australian Open before reaching the Roland Garros semis and the Wimbledon quarters.