Serena Williams announces her forthcoming retirement, leaving an incredible legacy. -- Tennis Channel is the only 24-hour network dedicated to tennis: both sport and lifestyle. It’s the number one destination for breaking news, live scores, pop culture, entertainment, and travel—all to help fans stay on top of the game. Subscribe to Tennis Channel Plus to stream over 4,500 live and on-demand matches from over 100 ATP & WTA events buytcplus.com. Watch live and exclusive content at: https://tennischannel.com Read the latest at: https://www.tennis.com/ Stay on top of on-and off-court tennis content: http://baseline.tennis.com/ Twitter: https://twitter.com/TennisChannel and https://twitter.com/Tennis Instagram: https://www.instagram.com/tennischannel/?hl=en Facebook: https://www.facebook.com/tennischannel and https://www.facebook.com/TennisMedia