The Pittsburgh Steelers have signed defensive tackle Isaiah Mack to their practice squad, the club announced Tuesday.
Signed as an undrafted free agent by the Tennessee Titans in 2019, Mack has also spent time with the New England Patriots and Denver Broncos.
Mack has played in 21 career games, recording eleven total tackles, 1.5 sacks and a tackle-for-loss.
He played collegiately at the University of Tennessee at Chattanooga, where he was named the Southern Conference Defensive Player of the Year in 2018. Mack posted 78 tackles, eleven tackles-for-loss and 8.5 sacks.