US Open results 2025: Jannik Sinner fights back to beat Denis Shapovalov in four sets

Defending champion Jannik Sinner say he is "not a machine" after being forced to fight from a set down in a testing encounter with Denis Shapovalov to reach the US Open fourth round.

Italy's Sinner, a four-time Grand Slam champion, defeated Canadian 27th seed Shapovalov 5-7 6-4 6-3 6-3.

World number one Sinner had only lost 11 games across his previous two matches but produced an off-colour performance on Arthur Ashe Stadium, struggling with his serve and producing a number of uncharacteristically loose groundstrokes throughout the first three sets.

Across the match, he produced five double faults and 36 unforced errors, while his first-serve percentage was just 58%.

But after saving a break point to avoid going a double-break down in the third set, he won 12 of the next 15 games to close out the victory.

"I'm not a machine, you know. I also struggle sometimes," said Sinner, who will play either 14th seed Tommy Paul or 23rd seed Alexander Bublik next.

"Today, I felt like I didn't struggle. I was playing great tennis, and he also. Every match is so difficult. The scoreline was a bit against me today, but I just tried to stay there mentally.

"I'm very happy to manage to win today because it was a very important win."

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