Reisner spent the 2011 and 2012 seasons with the Vikings, shuttling between the practice squad and the active roster after signing with the team as a rookie free agent. He signed with Jacksonville before the 2013 season and played five games for the Jaguars, starting three and catching five passes for 40 yards.
Manning played one game with the Chargers last season after being drafted by the Green Bay Packers in 2012. He played mostly special teams in five games with the Packers in 2012 and was let go by the team in the final round of cuts last August, after returning from a parasitic infection that caused him to lose 20 pounds during training camp. He was an outside linebacker at North Carolina State, and Packers general manager Ted Thompson thought enough of him to trade three picks in order to move up and draft Manning in the fifth round in 2012.
With competition likely coming at linebacker, Manning might have a chance to push for playing time.