The Denver Broncos made several roster moves on Monday, which included signing wide receiver Greg Hardin, safety Charles Mitchell and linebacker Chase Vaughn.

Hardin is a rookie free agent out of North Dakota, who totaled 3,583 yards and 32 touchdowns in college. Mitchell was a sixth-round draft pick by the Falcons in 2012 that was recently released by Denver before being brought back after a tryout.

Vaughn has played professional football in the Arena Football League, United Football League, Canadian Football League, and the Indoor Football League. He attended college at Colorado State-Pueblo.

The Broncos now have a roster of 90 players.

Denver also announced that it waived punter Steven Clark and defensive tackle Mister Cobble, along with putting defensive end John Youboty (Achilles) on the waived/injured designation.

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