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Her withdrawal means British captain Anne Keothavong is assessing her options, but likely to call up another player next week to join Katie Boulter, Sonay Kartal, Harriet Dart and Olivia Nicholls.

She saved two break points, but Rybakina took advantage of a third to level it up and, after holding her serve, she broke Boulter thanks to a double fault on match point.

Katie Boulter and Cameron Norrie were knocked out of Indian Wells on Sunday as both suffered straight-set defeats in the third round.

Boulter's run in the women's singles ended as the British number one was beaten 6-0 7-5 by seventh seed Elena Rybakina.

Boulter was playing in her first tournament since January's Australian Open because of a foot injury and received a first-round bye as the 25th seed.