On July 9, Serena Williams rolled her right ankle slightly while playing against Alison Riske in the Wimbledon tournament. She had her ankle re-wrapped late in the second set and went on to win the match. After the match, Williams said that she felt as healthy as she had been since January at the start of the Australian Open.

Sprained ankles are one of the most common injuries in tennis. During a sprain, the ligaments that hold the ankle bones together are partially or completely torn. It’s safe to play with most sprains: it’s a matter of whether a player can be effective.

Williams went on to play in the Wimbledon Semifinal against Barbora Strycova on July 11th, suggesting that she only had a minor sprain. She won the match and will play Simona Halep in the Wimbledon Final on July 13th.