CINCINNATI (AFP) — Defending champions Jannik Sinner and Aryna Sabalenka booked quarterfinal berths at the rain-hit ATP-WTA Cincinnati Open on Wednesday with straight-set wins.

Sinner shrugged off a mid-match rain interruption lasting nearly three hours as he advanced with a 6-4, 7-6 (7/4) victory over Adrian Mannarino.

He next faces Canada’s Felix Auger-Aliassime, who beat Benjamin Bonzi of France 6-4, 6-3.

Sabalenka, taken to three sets in her previous match with Emma Raducanu, defeated Spain’s Jessica Bouzas Maneiro 6-1, 7-5, winning a season-leading 50th match of 2025 and reaching her 29th career Last-Eight at the elite 1000 level.

Sabalenka had to work after surrendering a second-set break, but she broke Bouzas Maneiro in the final game to seal the victory.

“The key was to focus and put as much pressure as possible on her serve,” Sabalenka said.

“I was up a break, made a couple of mistakes and she broke me back.”

“I’m glad to win in straight sets — I didn’t want to stay for three hours.”

World No. 1 Sinner, playing his first tournament since lifting the trophy at Wimbledon, notched his 24th consecutive hardcourt match win to gain his fifth quarterfinal of the season.

The victory required patience, with the Italian who turns 24 on Saturday passing some of the afternoon weather pause by playing cards with his team.

Sinner had won the first set and they were on serve in the second when they returned, but the Frenchman’s tricky game took a toll as Sinner was broken while trying to serve out the match.

The second set instead went to a tiebreak, with the Italian firing his 11th and 12th aces to clinch victory.

“He’s a very difficult opponent, different from the other players,” Sinner said.

“He can read the opponent well.”

“It was a struggle to close it out, but I’m happy to be in the quarterfinals.”