Novak Djokovic thinks he came up with a way to get Serena Williams back on the tennis tour: Dare her to do it.

Serena Williams joins TODAY to open up about taking a GLP-1 medication and discuss what playing tennis is like for her since retiring. “I just can’t be calm. I don’t know how,” she says. She also looks back at her cameo on "Law & Order,

The tennis world surely misses Serena Williams, the multiple Grand Slam champion who is no longer part of the WTA circuit. Still, she has remained highly visible, often stealing th