May 19, 2014 9:30 PM by Jordan Mason
ENGLEWOOD, Colo. - The Denver Broncos on Monday signed three players-wide receiver Greg Hardin, safety Charles Mitchell and linebacker Chase Vaughn-to bring their roster to the offseason limit of 90, it was announced.
The club also waived punter Steven Clark and defensive tackle Mister Cobble in addition to designating defensive end John Youboty (Achilles) as waived/injured.
Hardin (5-11, 177 pounds) is a rookie college free agent from the University of North Dakota who started 39-of-42 career games for the Sioux and totaled 221 receptions for 3,583 yards (16.2 avg.) with 32 touchdowns.
Mitchell (5-11, 205 pounds) is a second-year player who was waived by the Broncos last week before being brought back on a tryout basis during the club's rookie mini camp. He was selected by Atlanta in the sixth round (192nd) overall of the 2012 NFL Draft from Mississippi State University.
Vaughn is an NFL rookie who will competing in his fifth professional football league. He has previous experience playing in the Arena Football League (Spokane Shock, 2013), the United Football League (Las Vegas Locomotives, 2010-12), the Canadian Football League (Calgary Stampeders, 2012) and the Indoor Football League (Colorado Ice, 2011). A participant in Denver's rookie mini camp as a tryout player, he attended Colorado State-Pueblo, where he was the school's all-time sacks leader (15.5).