If Elaine Brady is on the court during a match, it usually means a player has called for a medical timeout. As one of the WTA’s primary healthcare providers since 2007, she is often a last resort between play continuing or ending in a retirement.

But her most important work is done away from the floodlights of a stadum court, as injury prevention takes much more time than the six minutes a medical timeout allows.

“Most work each day is aimed towards preventative strategies,” says Brady, who earned a degree in physiotherapy and a masters in orthopedic medicine. “That may be preparing an athlete effectively for her match and assessing injuries she’s already got.

“All the work behind the scenes in the training room, but we’re most visible when an athlete injures themselves on the court during the match and we’re called to court to treat them.”

Fans might not always be happy to see Brady on court, but the players are certainly grateful.

“They have to deal with me and my bad moods sometimes,” jokes Garbiñe Muguruza. “They take care of all my tapes every day, and I think they’re very important and I’m very thankful to have them at every tournament.”

Learn more about Brady’s line of work in the latest episode of On The Tour.