Colts sign Anthony Walker Jr. to their practice squad, reuniting with the club that drafted him in 2017. Walker brings eight years of pro experience and a 581-tackle resume, plus 83 starts in 99 games. He augments LB depth behind an injured Carlies as Indy previously added Chad Muma and Joe Bachie. Week 1 against the Dolphins looms, and Indy’s PS stash remains a critical safety net for callups and varied look tests.