May-Treanor was hurt last week while practicing routines with her professional dance partner Maksim Chmerkovskiy.

It was announced on Monday's program that she wouldn't be returning to the dance competition series this season.

"I ruptured my Achilles tendon and from that point on I knew I couldn't continue. I'm out and I'm really bummed," May-Treanor told People magazine. "We don't know why these things happen. They could happen to anyone. I feel like I was only just beginning here."

The athlete is expected to undergo surgery this week, followed by nine months of rehabilitation.

"I will be back -- on the volleyball court and maybe on the ballroom. I would come back to the ballroom if they asked me back," May-Treanor told People.