Simona Halep saved a match point before defeating Canadian teen Bianca Andreescu 3-6, 7-6, 6-3 at the WTA Finals in Shenzhen.
Both players sought medical treatment during the match, with Halep getting her foot treated while Andreescu had a lower back problem.
Elsewhere, defending champion Elina Svitolina stretched her unbeaten run at the season-ending tournament with a 7-6, 6-4 win over Karolina Pliskova.
Halep and Svitolina are now 1-0 in the Purple Group, while Andreescu and Pliskova are 0-1.
Djokovic falls in Cincinnati heat in first match since Wimbledon
Thiago Agustin Tirante has rallied past Novak Djokovic 2-6 6-4 6-4 at the Cincinnati Open on Saturday, as the Serbian struggled in the heat and required a medical timeout in a disappointing US Open tune-up.
Islam Makhachev wins record 17th straight fight at UFC 330
Islam Makhachev (29-1 MMA) has successfully defended his UFC welterweight championship Saturday night, defeating Ireland's Ian Machado Garry (17-2 MMA) via unanimous decision (49-46, 49-46, 48-47) while also setting an impressive record in the main event of UFC 330 in Philadelphia.
Germany's Liebmann smashes 1500m world record
Germany's Johannes Liebmann has smashed the world record for the men's 1500 metres at the European Aquatics Championships on Saturday, knocking almost four seconds off the previous record in a dominant display.
Inter sign England defender Spence from Tottenham
Inter Milan have signed England international winger Djed Spence from Tottenham Hotspur on a contract running until June 30, 2031, the Serie A club said on Saturday.
Eight-try All Blacks thump Bulls 50-19 in Pretoria
New Zealand ran in eight tries as they thumped South Africa’s Bulls 50-19 in their latest Rugby’s Greatest Rivalry tour fixture in Pretoria on Saturday, an impressive warm-up ahead of the first test against the Springboks next weekend.
