Jannik Sinner faces little test en route to US Open 4th round - ESPN

In the wake of upset losses by No. 3 Carlos Alcaraz and No. 2 Novak Djokovic, men's world No. 1 Jannik Sinner advanced comfortably into the second week of the US Open on Saturday.

Sinner enjoyed a businesslike 6-1, 6-4, 6-2 win over Australia's Christopher O'Connell to reach the round of 16, where he will face either Canadian qualifier Gabriel Diallo or American Tommy Paul, the No. 14 seed.

Sinner ensured that dubious history was not made Saturday at Flushing Meadows; since the start of the Open era in 1968, there has never been a US Open without any of the men's top three seeds in the round of 16.

• Sinner has reached round of 16 at all 4 majors this season; 19 major match wins this season are tied with Carlos Alcaraz for most among men
• 51st match win this season, 4th most by an Italian man in a season since Open era began in 1968, trailing only himself (64 in 2023), Corrado Barazzutti (54 in 1978) and Adriano Panatta (53 in 1975)
• Won 82% of his 1st serve points and didn't drop any of his 13 service games (didn't face a break point); was broken 6 times over his first 2 matches
• 15 aces Saturday (had 14 aces in his first 2 matches)

— ESPN Stats & Information

«Everything can happen in this sport,» Sinner said in his on-court interview. «I try to stay on my side of the net and take it day by day.… Very happy to be still here and hopefully I can play as many matches as possible.»

After slow starts in his opening two matches, Sinner shot out of the blocks at Arthur Ashe Stadium for a 5-0 lead before taking the first set on serve. He broke early for a 2-1 lead in the second and went on to clinch the set with a vicious cross-court forehand winner.

Sinner fired 15 aces for the match and did not face a break point. He