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Canada’s Félix Auger-Aliassime was knocked out of the French Open Sunday after losing to Carlos Alcaraz in straight sets (6-3, 6-3, 6-1) in the Round of 16.

The third-seeded Alcaraz will move on to the quarterfinals to take on Stefanos Tsitsipas, who won his fourth-round match against Matteo Arnaldi earlier in the day.

Auger-Aliassime appeared to struggle with his left leg and called a trainer at the changeover at 3-2 down in the second set, then left the court for a medical timeout.

Auger-Aliassime advanced to the fourth round after beating American Ben Shelton on Friday.

The Canadian’s run to the final 16 in Paris comes on the heels of his appearance in the final at the Madrid Open in May, where he dropped the championship match to Andrey Rublev.

— With files from The Associated Press