CHARLESTON, SC – Eugenie Bouchard and Madison Keys hit the center court at the Family Circle Tennis Center for the second installment of Workout With USANA.

Caroline Wozniacki and Sam Stosur hosted the first installment of the Workout With USANA series at Indian Wells, where they showed fans their best resistance and flexibility exercises. This time, USANA brand ambassadors Genie and Madison grabbed a pair of young fans from the crowd and walked them through their go-to shots.

“It was my first experience coaching so I was trying to explain my favorite shot, which is my backhand cross court,” said Genie.

“It was super fun, I hope the kids learned something!”

For Madison, her go-to shot was her booming serve, and she gave fans a step-by-step instruction on how to hit it.

“I love that we were able to bring someone out from the crowd,” she said. “She was very good, I was really impressed!”

Check out the best photos from Workout With USANA, and see how well Genie and Madison did in coaching their young protégés, Paige and Haynes!

USANA is the Official Vitamin & Supplement Supplier of the WTA, and over 170 Athletes – including 8 out of the Top 10 and 15 out of the Top 20 use USANA products. Former No.1 Caroline Wozniacki, Samantha Stosur, Eugenie Bouchard, and Madison Keys are among several USANA ambassadors, and 2016 marks the 10th Anniversary of the USANA-WTA partnership. Check them out on Instagram at @USANAInc.