A fourth-year player, Cooper primarily was used as a kicker returner for two-plus seasons with the Los Angeles Rams. He finished 2018 with the Cardinals. He has 25 catches for 190 yards in his career.
Perine, a third-year player out of the University of Oklahoma, was a fourth-round pick of the Redskins in 2017. He rushed for 635 yards and a TD and caught 25 passes for 187 yards and a score.