"Gabby Price": THNKR follows 9-year-old tennis phenom Gabby Price as she trains with legendary coach Rick Macci - former coach of the Williams sisters, Maria Sharapova, and Jennifer Capriati - and competes successfully in a national tournament with much older, stronger girls. In an era dominated by international superstars, where only two Americans have won the US Open (both former students of Rick Macci's), Gabby represents the future of US tennis. The episode reveals Gabby's incredible talent and adorable charisma, giving viewers a rare window into the makings of true greatness.