Ellis, 29, is a former fourth-round pick of the Raiders back in 2014. He played out the final year of his rookie contract and was set to be an unrestricted free agent for the first time in his career before agreeing to a three-year extension worth over $15 million last year.
The Raiders placed Ellis on injured reserve coming out of the preseason with a knee injury and later cut him with an injury settlement. From there, he agreed to a deal with the Ravens in November.
In 2019, Ellis appeared in four games for the Ravens and recorded six tackles and no sacks.