Osaka advances as Gauff, Jabeur dumped out of Qatar Open

Naomi Osaka battled into the last 16 of the Qatar Open on Tuesday but Coco Gauff and Ons Jabeur crashed to surprise second-round exits with straight-sets defeats.

Four-time Grand Slam champion Osaka brushed past Croatia’s Petra Martic 6-3, 7-6 (11-9), continuing a comeback from maternity leave after giving birth to her daughter in July.

Osaka grasped control with a break in the fourth game of the opening set. She broke twice more in the second set — on either side of dropping her own serve — only to blow a chance to close out the match at 5-4.