Miami swapped cornerbacks on the practice squad: Isaiah Johnson returns, B.J. Adams is cut, and JuJu Brents was added via waivers from Indianapolis. The move tightens the Dolphins’ boundary depth behind the top corners while navigating the league’s roster rules, including a 16-man PS cap and rookie/second-year limits. Johnson’s re-emergence provides length and veteran presence as Brents steps into tighter competition for snaps this season.