Emma Raducanu is encouraged by her preparations for the US Open after pushing Aryna Sabalenka close in a competitive defeat in Cincinnati. Raducanu was beaten in a third-set tiebreak by the world No 1 having battled back from a set down to force a decider, and matched Sabalenka virtually stroke for stroke throughout.

Aryna Sabalenka admitted she was left worried about her age despite her impressive victory over Emma Raducanu at the Cincinnati Open.

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