INDIAN WELLS (AFP) — Top-seeded Carlos Alcaraz edged Felix Auger-Aliassime 6-4, 6-4 to book a semifinal meeting with Jannik Sinner at the WTA and ATP Masters 1000 at Indian Wells.

Alcaraz posted his first win over the 10th-ranked Canadian in four career meetings to keep his bid to regain the world No. 1 ranking on track.

“Probably I played one of my best matches of this season, so I’m really happy,” Alcaraz said.

Italy’s Sinner reached the final four with a 6-4, 4-6, 6-4 victory over defending champion Taylor Fritz and now has a chance to avenge his loss to Alcaraz in a quarter-final thriller at the US Open last year.

That five-set battle lasted five hours and 15 minutes, its 2:50 a.m. finish the latest in US Open history. Alcaraz would go on to lift the trophy and become the youngest world No. 1 in the history of the ATP rankings.

“I’m really happy to play against him again,” Alcaraz said of facing Sinner.

“Great battles.”

Alcaraz has slipped behind Novak Djokovic in the rankings, but after injury delayed his 2023 season start to February the 19-year-old Spaniard has won one title at Buenos Aires and reached the final at Rio de Janeiro.

Alcaraz hadn’t dropped a set in reaching the quarters, but Auger-Aliassime was the first top 10 player he has faced this year.

This time, Alcaraz was ready for him, saying his prior defeats to Auger-Aliassime had taught him to “stay there.”

“The previous matches, in the Davis Cup it was close, I had my chances,” said Alcaraz, who last fell to the Canadian in Basel in October.

“In Basel I remember I gave up a little bit. Today the goal of mine was to stay there. I knew that I was going to have my chances, (I) tried to take it.”