Transcript for Tennis Sensation Makes Comeback After Battling Cancer
your home or kitchen you got a lot to choose from. You could reverse it like th'd like. Any way you want, machine though stows you are at the U.S. Open two years ago. Welcome to the big time. Reporter: It seemed like the perfect beginning of a fairy tale career. I don't take anything for granted. You never know what can happen any day. Reporter: Little did tennis' Cinderella know how prophetic her words would be. Less than a year after that. I had a lump about this big right here. Reporter: Duval was diagnosed with Hodgkin's lymphoma the day before wimbledon but still won her first match but by the second match. I cried the whole entire match. I thought I was going to die. To me cancer meant death. A little bit overwhelmed. Reporter: The rising star of the women's tennis association left the court behind for chemo. That was definitely the lowest point of my life. Reporter: Duval got through the worst of it by remeeting her mantra, I'm not sick, I'm not sick until her nausea subsided. That and support from fellow competitors helped her stay positive. ? Reporter: Today the teen sensation is cancer-free and spends every minute living life to its fullest. ? Look at that ? Seems like nothing can really get me down no matter what. Reporter: After a punishing 14 months Duval is thriving and back in the game. Competing in the mixed doubles at the U.S. Open. This is what I work for. It just fees so good to be back.
This transcript has been automatically generated and may not be 100% accurate.