Riley is a role-player on defense and a notable contributor on special teams for the Dolphins. He only logged one sack and a pair of TFLs on defense but took the field for 73 percent of the Dolphins' special teams snaps. His two-way utility was more than enough to earn him a multi-year deal.

Riley, a seven-year veteran, will return for a second season with the Dolphins. In 2021, he served as a depth linebacker and a special teams player. He should maintain that role for Miami in 2022. 

Riley made eight starts for the Eagles last year, posting 55 tackles, an interception, and two TFLs. He'll replace Kamu Grugier-Hill as a depth presence and special teams contributor. The Dolphins also added ex-Texans OLB Brennan Scarlet this week.

Riley didn't play a snap on defense across four games with the Falcons this season. He'll need to develop consistency as a tackler to earn a substantial role with the Eagles, but a change of surrounding could be what the 2017 third-round pick needs. At the very least, Riley should contribute on special teams in Philadelphia.