Hall of Famer Martina Hingis visited Tennis Express to tells us all about her Tonic Tennis line. Find out what she had to say about her sleek, flattering tennis gear in her chat with Brandy.

Has she always been interested in fashion? How did her partnership with Tonic come about? Find out by watching the video!

Later, the former world No. 1 (in both singles and doubles) and five-time Grand Slam singles champion spent some time meeting Tennis Express customers at the Houston superstore, even hitting some balls on our indoor tennis court!