Nike Training Club debuts a new workout with tennis star Serena Williams. Serena’s Core Power workout features some of her favorite core-strengthening moves that have helped her stay at the top of women’s tennis for more than a decade.
The 15-minute workout includes basic exercises done with stability balls and resistance bands, making them great for athletes of all types, and can be done anytime, anywhere.

The NTC app is available for free on iTunes or for Android. Download the NTC app here.