The Cincinnati Bengals worked out three linebackers on Tuesday

The Cincinnati Bengals worked out linebackers Terrell Manning (who ended up signing), L.J. Fort and Jake Knott on Tuesday.

Knott is a former undrafted free agent who signed with the Eagles following the 2013 NFL draft. He tested positive for performance-enhancing drugs in April, 2014 but was released in August and signed onto their practice squad after final cuts. Fort was an undrafted free agent in Cleveland, who has also resided on Denver's roster and more recently, Seattle's practice squad, where he doubled-down as a fullback.

They eventually signed Manning, a second-year player with nine games of league experience, to the team's practice squad. Manning played for the New York Giants during the '14 preseason and joined the practice squads in Miami and Chicago before signing onto the Bear's 53-man roster on Sept. 22. Manning is a former fifth-round pick by the Green Bay Packers in 2012.

To make room for Manning, the team released linebacker Justin Jackson, who had been on the practice squad since Nov. 3.