Aug 11 (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.

Relive Emma Raducanu's narrow three-set defeat by world number one Aryna Sabalenka in the third round of the Cincinnati Open.

Emma Raducanu was knocked out of the Cincinnati Open after a battling performance saw her slip to a narrow third-round defeat against world number one Aryna Sabalenka. Monday's match was the pair's second meeting of the year after Sabalenka edged to victory in their third-round encounter at Wimbledon.

Sabalenka's staggering tiebreak record illustrates her play under pressure but also her vulnerability in matches this year.

Emma Raducanu recently shared a sneak peek of her post-training session shortly after experiencing loss at the Cincinnati Open.

Aryna Sabalenka earned a truly epic victory at the Cincinnati Open, defeating a determined Emma Raducanu 7-6(3), 4-6, 7-6(5) to advance to the Round of 16.

Emma Raducanu will face Aryna Sabalenka on Monday at around 6pm at the Cincinnati Open on Sky Sports; watch the US Open live on Sky Sports Tennis, streaming service NOW and the Sky Sports app from Aug