Gauff's superpower is her fitness. Keys' superpower is her calm. Both back their lungs to take them into the Roland Garros semifinals.

Her parents, Corey and Candi Gauff, both former collegiate athletes, left their careers to support her tennis dreams. Corey played college basketball at Georgia State University and Candi was a track and field athlete at Florida State, according to PEOPLE Magazine.

Coco Gauff has earned her fifth consecutive trip to the French Open quarterfinals with a straight-set victory but still is catching flak because she forgot to bring her rackets to an earlier match.