Serena Williams of the U.S. celebrates during her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. Serena Williams reached her 14th Wimbledon quarter-final by overwhelming Spain's Carla Suarez Navarro 6-2 6-2. REUTERS/Tony O'Brien

Serena Williams of the U.S. in action during her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. REUTERS/Tony O'Brien

Serena Williams of the U.S. in action during her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. REUTERS/Andrew Couldridge

Serena Williams of the U.S. in action during her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. REUTERS/Tony O'Brien

Serena Williams of the U.S. in action during her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. REUTERS/Tony O'Brien

Serena Williams of the U.S. celebrates winning her fourth round match against Spain's Carla Suarez Navarro at All England Lawn Tennis and Croquet Club, London, Britain, July 8, 2019. REUTERS/Tony O'Brien