Tennis matches sometimes end in tears. But the waterworks don’t usually come soon after the start, as in Emma Raducanu’s second-round match at the Dubai Tennis Championships on Tuesday. The 22-year-old Brit broke down crying and walked behind the umpire’s chair after the second game—and not because she was down 2-0 against Czech player Karolina Muchova. In the first few rows of stands, Raducanu had spotted a so-called fan who’d approached her in a public area on Monday, per NBC News . The Women’s Tennis Association said he’d exhibited