![Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog](https://womenstennisblog.com/wp-content/uploads/2013/12/Sloane-RG.jpg)
Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog
![Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog](https://womenstennisblog.com/wp-content/uploads/2013/12/8343953689_0333b29507.jpg?ezimgfmt=rs:382x329/rscb1/ngcb1/notWebP)
Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog
![Sloane Stephens in match play at the 2013 Australian Open Grand Slam tennis tournament. The teenager defeated Grand Slam champion Serena Williams Stock Photo - Alamy Sloane Stephens in match play at the 2013 Australian Open Grand Slam tennis tournament. The teenager defeated Grand Slam champion Serena Williams Stock Photo - Alamy](https://c8.alamy.com/comp/K60DYW/sloane-stephens-in-match-play-at-the-2013-australian-open-grand-slam-K60DYW.jpg)
Sloane Stephens in match play at the 2013 Australian Open Grand Slam tennis tournament. The teenager defeated Grand Slam champion Serena Williams Stock Photo - Alamy
![Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog Small brands betting in on young stars: Sloane Stephens promoting Under Armour in her stellar 2013 - Women's Tennis Blog](https://womenstennisblog.com/wp-content/uploads/2013/12/Sloane-Stephens-at-the-2013-Australian-Open.jpg?ezimgfmt=rs:382x303/rscb1/ngcb1/notWebP)