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.
Tottenham, West Ham both win as battle to avoid relegation continues
Tottenham Hotspur earned a vital win in their relegation fight, edging bottom side Wolverhampton Wanderers 1-0 on Saturday, while West Ham struck in added time to overcome Everton.
Barcelona march on towards title with 2-0 victory at Getafe
Barcelona continued their march towards LaLiga title with a 2-0 victory at Getafe on Saturday, as goals from Fermin Lopez and Marcus Rashford secured them a ninth consecutive league win.
Ngidi leaves IPL game in ambulance after head injury
South African Lungi Ngidi was rushed out of the stadium in an ambulance after the fast bowler hit his head while attempting a catch in Saturday's Indian Premier League game between Delhi Capitals and Punjab Kings.
Pakistan to allow spectators at PSL final
Next month's Pakistan Super League final will be open to fans, Pakistan Cricket Board (PCB) chairman Mohsin Naqvi said on Saturday, after matches in the tournament were played behind closed doors due to a nationwide fuel shortage.
Colombia's Munoz dies from infection days after crash
Colombian cyclist Cristian Camilo Munoz has died from medical complications following an accident during last week’s Tour du Jura in France, his team NU Colombia said on Friday.
7:00pm - 11:00pm
Officially the UAE's favourite DJ, Dany Neville makes sure you have the soundtrack you need every Saturday night.
11:00pm - Midnight
Baby Doll
Dominic Fike
Dracula
Tame Impala & Jennie
E85
Don Toliver