‘Colling’s contract kicks in at the start of the new season, as outlined by the NFL labor agreement. He most recently played with the Cleveland Gladiators of the Arena Football League, seeing action in 16 of 18 games last season when he finished as the team’s leader in sacks (four) and tackles for a loss (five). The defensive lineman was the Gladiators’ sixth-leading tackler with 29 stops, including 17 solo tackles. He also forced a team-best three fumbles and recovered two fumbles.’