The Williams sisters won 30 Grand Slam titles

When Venus and Serena Williams emerged from the public courts of Compton in the 1990s, they brought a physical intensity that the professional tour had never seen. Their combined 30 Grand Slam singles titles represent a total shift in how the game is played, replacing delicate volleys with serves that exceed 120 miles per hour. At Wimbledon alone, the sisters claimed 12 singles trophies, often facing each other in the finals while simultaneously dominating the doubles circuit.