Maria Sharapova has won five Grand Slams since becoming a pro tennis player at just 14 years old— and she's faced her share of setbacks, too. Sharapova joins Katie at 92Y in New York City to discuss highlights from her new memoir, including emigrating from Russia at age 6, her rivalry with Serena Williams, and the urine test that took her off the court. Sharapova also opens up about her recent ban from tennis, calling it "one of the toughest things that an athlete can go through." Plus, what it was like to return.