Richardson, 24, originally signed on with the Saints as an undrafted free agent out of Indiana in May of 2015. He managed to make their 53-man roster during his rookie season but was, unfortunately, cut loose coming out of the preseason last year.
The Redskins signed Richardson to their practice squad a week later but was eventually waived to make room for LB Carlos Fields. The Chiefs signed Richardson to their practice squad in November but his stay in Kansas City was short-lived.
The Broncos signed Richardson back in February and waived him earlier this week, making his stay in Denver brief.
In 2015, Richardson appeared in 15 games for the Saints and recorded 40 total tackles, a half-sack, one interception and one pass defense.
Bryant, 29, originally signed on with the Bears as an undrafted free agent out of Northwestern back in 2011. He later caught on with the Steelers and spent over a year in Pittsburgh before he was cut from their practice squad during the 2012 season.
The Bills signed him to a contract and brought him back on a one-year restricted deal last April worth $1.67 million. Corbin signed on with the Giants a few months ago.
In 2016, Bryant appeared in eight games and recorded 11 tackles and no sacks for the Bills.