Riley, 28, is a former fourth-round pick of the Redskins back in 2010. He was in the final year of his three-year, $13 million contract and set to make a $4 million base salary in 2016 when the Redskins cut him loose in the final week of the preseason.
The Raiders signed Riley to a one-year contract back in October following Week 4.
In 2016, Riley appeared in 11 games for the Raiders and recorded 48 total tackles, two forced fumbles, and one pass defense. Pro Football Focus rated him as the No. 15 overall linebacker out of 87 qualifying players.
We have him featured in our Top 100 – 2017 Free Agents list