Sabalenka edges Raducanu at Cincinnati Open, Sinner passes Diallo test

World number one Aryna Sabalenka kept her Cincinnati Open title defence alive by claiming a 7-6(3) 4-6 7-6(5) victory over Emma Raducanu in a marathon third-round clash on Monday, while men's top seed Jannik Sinner overcame Canadian Gabriel Diallo.

Fresh off their third-round clash at Wimbledon last month, Sabalenka and Raducanu produced another epic contest, featuring a 13-deuce game in the third set, before the 27-year-old Belarusian sealed victory in three hours and nine minutes.

Sabalenka relied on her trademark powerful serve to hold firm in the key moments, winning two tiebreaks to take her tally to 18 for the season, the most by any women's singles player in the professional era.

Despite the defeat, Raducanu seems to be finding her best form just in time for this month's U.S. Open at Flushing Meadows, where she triumphed in 2021. The 22-year-old Briton outscored Sabalenka in total points won, 125-123.

"I'm really happy to see her healthy. I can see she's improving," Sabalenka said of Raducanu. "Happy to get through this match. I really hope tomorrow I have a day off."

Sabalenka next faces Spaniard Jessica Bouzas Maneiro in the last 16.

Men's defending champion Sinner reached the last 16 with a 6-2 7-6(6) victory over Diallo, stretching his winning streak on hardcourts to 23 matches.

The 23-year-old four-times Grand Slam, whose clash with Diallo was delayed by a fire alarm before the players continued through the noise, next faces the winner of Tommy Paul and Adrian Mannarino.

"I feel like today was a very difficult day at the office," Sinner said. "He was serving very well, especially in the second set. Against big servers you always have to find the right balance at the back of the court.

"Today I struggled a bit at