World number one Jannik Sinner was knocked out of the Canadian Open in the quarter-finals by Russia's Andrey Rublev.
The world number eight won 6-3 1-6 6-2 against the Italian top seed in a rain-interrupted match in Montreal.
Sinner struggled with an injury to his right hip and the 22-year-old frequently massaged the area, which could be a concern to him with the US Open starting in a fortnight's time.
"It was a really great match of mine. Jannik is an amazing player and he has played unbelievably for two years. I was just hoping I would be able to fight with him," the 26-year-old said.