Naomi Osaka, the first seed and home favorite, is competing for her first title at the Japan Open.
Osaka faced a challenging match against defending champion Suzan Lamens in the fourth round. Although Osaka won the first set, she struggled to maintain her lead in the second set.
The turning point came in the third set when Osaka took a 5-0 lead. However, during a rally, Lamens hit a backhand shot, causing Osaka to injure her left leg.
Osaka injured her left leg but still decided to play.
After requesting a medical timeout, Osaka returned to the court with a strapped left thigh and continued playing.
Author's summary: Osaka defeats defending champion despite injury.