Heckled by a spectator during her BNP Paribas Open match Saturday, Naomi Osaka tearfully took the unusual step of addressing fans from the court, telling them that the experience reminded her of the harassment faced by Serena and Venus Williams years ago in the Indian Wells event. Osaka had lost the first game of her second-round match against Veronika Kudermetova when an unidentified fan yelled, “Naomi, you suck” in an uncommon breach of decorum for tennis spectators. She fought for composure on the court and asked the chair umpire, “can I borrow your microphone,” to address the crowd mid-match. Asked...