Serena Williams could easily walk off the court and into the broadcast booth if she wants to, pocketing a handsome paycheck and boosting ratings for a sport that is losing star power, those in the business say.

Williams bid an emotional farewell to the sport she dominated for over two decades at the U.S. Open on Friday night, and afterward said she wanted to stay attached to the game.

"Tennis has been such a huge part of my life, I can't imagine not being involved in tennis," she told reporters.