Butler’s ventured to several NFL destinations since arriving in the NFL as a Steelers fifth-rounder in 2010. The 29-year-old corner served as secondary depth for Detroit, which lost now-retired Rashean Mathis, for the season. He’s played for eight teams and suited up in 45 games, making three starts — all for the Buccaneers in 2014.
Butler spent training camp with the Lions in 2015 before rejoining the team midseason after spending time with the Seahawks.
Muhlbach has been the Lions’ specialty snapper since 2004. Only the seventh player to play in 180 games for the Lions, Muhlbach is the team’s longest-tenured player by a wide margin now that Calvin Johnson announced his retirement.