World number one Aryna Sabalenka cruised into the Cincinnati Open quarter-finals with a 6-1 7-5 win over Jessica Bouzas Maneiro on Wednesday, while defending champion Jannik Sinner beat Adrian Mannarino following a lengthy rain delay. Fresh off a thrilling third-round battle with Emma Raducanu, reigning champion Sabalenka had an easier ride against the Spaniard, earning her tour-leading 50th win in one hour and 20 minutes. "I was up a break, made a couple of mistakes and she broke me back,"