- The Raiders signed Williams as a free agent from Arizona in 2015. He played in all 32 regular-season games and one playoff game in two seasons with Oakland.
- Williams had his career-high PFF grade in the 2015 season at 85.1, finishing with the fifth-highest run-stop percentage among all DTs (min. 100 run-play snaps) at 12.1 percent.
- Williams had been the highest-graded interior defensive lineman in 2016 left on the Raiders roster, leading the group with an overall PFF grade of 74.4.
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