• MLS. Julian Zakrzewski Hall
(NY Red Bulls), 15 years, 190 days. On Saturday became the second youngest player to appear in an MLS match, only behind Freddy Adu. • NWSL. Melanie Barcenas
(San Diego Wave), 15 years, 177 days. In April debuted for her hometown team and has since played five more league games. • USL Championship. Da'vian Kimbrough
(Sac Republic FC), 13 years, 225 days. On Sunday became the youngest U.S. soccer player to make a pro debut.