(Reuters) -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.

Jannik Sinner and Aryna Sabalenka got their title defenses off to smooth starts as they powered into the third round of the ATP-WTA Cincinnati Open on Saturday.The men's and women's top seeds, each ranked number one in the world,

Top-ranked Aryna Sabalenka fought through a three-hour battle to hold off an inspired Emma Raducanu 7-6 (7/3), 4-6, 7-6 (7/5) on Monday and reach the fourth round of the ATP and WTA Cincinnati Open.Sorana Cirstea defeated Yuan Yue 6-7 (2/7),