Serena Williams lost her exhibition match against French Open champion Jelena Ostapenko 6-2, 3-6, 10-5 at the International Tennis Stadium in Abu Dhabi. Martin Dokoupil / EPA
Serena Williams lost her exhibition match against French Open champion Jelena Ostapenko 6-2, 3-6, 10-5 at the International Tennis Stadium in Abu Dhabi. Martin Dokoupil / EPA