World number one Naomi Osaka launched her Indian Wells WTA title defense with a 6-3, 6-4 victory in a grudge match against Kristina Mladenovic on Saturday.
Osaka, whose second straight Grand Slam title at the Australian Open in January propelled her to the top of the rankings, was beaten by 65th-ranked Mladenovic in Dubai last month in her first match since she lifted the trophy in Melbourne.
Keen to avoid a repeat, Osaka marched through the opening set in 38 minutes, but she hit a speed bump as she was broken when serving for the match at 5-2 in the second.
After Mladenovic held serve to narrow the deficit to 5-4, the Japanese player faced another break point before wrapping up the match after one hour and 21 minutes. Read more