Naomi Osaka retires, Emma Raducanu loses to Camila Girogi, Bianca Andreescu beats Daria Kasatkina in Toronto
News of the pending retirement of Serena Williams overshadowed proceedings at the tune-up for the year's final Grand Slam but there were no shortage of first-round upsets for fans to enjoy, including one by local Bianca Andreescu. Twice U.S. Open champion Osaka, in only her second tournament back from an Achilles injury, battled on gamely before retiring while trailing Kaia Kanepi 7-6(4), 3-0.


