Marion Bartoli's sudden retirement rocked the tennis world. Barely more than a month after winning Wimbledon, her only Grand Slam title, she retired after a routine loss with her first match in Cincinnati. Nobody saw this coming.
There have been other surprising retirements in Open-era tennis with some of the biggest stars in tennis. Usually, there is a hint that this will occur, but it can still be stunning when a top player is still playing so well.
The following ranks high-profile retirements from tennis while giving most consideration to a player's stature and impact on tennis.