Tennis Star Serena Williams Addresses Health Scare

Tennis superstar Serena Williams is speaking out about her recent medical emergency. She underwent surgery to remove a grapefruit-sized hematoma, or pool of blood, in her stomach the day after she attended the Vanity Fair Oscar® party.

"I had to get it drained and when I got there, [the doctors] were like, 'We can't drain this, we have to surgically remove it.' "

So how did one of the world's fittest women end up with such a life-threatening health problem? She cut her foot on a piece of glass last summer and ended up in a cast for several months. Doctors say that injury caused her to develop a pulmonary embolism.

Treatment for the embolism caused the hematoma.

Williams told the Today show her dreams of a comeback are driving her recovery, and she hopes to return to the court by the summer.