1. Rashaan Melvin
The top free agent signing for the Raiders this offseason will come in and fill a void on the Raiders defense that has been there for some time. The Raiders signed cornerback Rashaan Melvin to a one-year contract this offseason, and he could prove to be one of the biggest steals of free agency.
Melvin is making his seventh stop on his NFL journey, as he has really had to earn everything he has gotten up to this point. Finally getting some starting work with the Indianapolis Colts last season, Melvin proved he could cover anybody, as he made Antonio Brown disappear for nearly the entire game when the Colts played the Pittsburgh Steelers back in November of last year.
While locking up Brown was pretty impressive, Melvin also picked on Cleveland Browns rookie quarterback DeShone Kizer, intercepting him twice in one game. At 28-years old, Melvin has a ton of good football left in the tank, and finally getting a chance to be a full-time starter, he has done nothing but excel in the role.
The bottom line is, the cornerback position has been terrible for the Raiders in recent years, and the depth on the 2018 roster is much better than it has been. Melvin and Gareon Conley could be the true CB1 and CB2 this team has been lacking, and on a one-year deal, how could you go wrong.