My Player Roster

Hi everyone, hope you're fine, i'm just passing by with a curious question, i'm playing my player, and i have everything updated, like jerseys, courts, dorna, logos, but not the roster, and that's why i wanna know if there is a way to update the roster and play with it on my player journey... by the way i did this same question for nba 2k11 forum, because i really liked that game.