Britain's Sonay Kartal showed her "fighter" spirit as she battled back to stun former Australian Open champion Madison Keys in the third round at Indian Wells.
American Keys, who won her first major at Melbourne Park in 2025, dominated the first set but Kartal rallied to complete a 2-6 6-2 6-3 turnaround in just under two hours.
The British number two revealed she was still struggling with the back injury that had forced her to call a medical time out during her second-round match against Emma Navarro on Sunday, when she saved a match point en route to victory.