The forty-eight EFL teams from League's One and Two had already been placed into Groups in order to minimise travel for EFL Clubs and supporters, with the remaining sixteen Invited teams added to them on Friday afternoon.
Darrell Clarke's Saddlers, who had already been drawn into 'Southern Group D' alongside Coventry City and Forest Green Rovers, were soon joined in the group by Southampton's Under-21s, giving the young Saints a lengthy awayday to get their teeth in to.