Throughout the series, we take a look at how the player performed in the 2017 season, then look at why they could progress or regress in 2018. We finally provide a look at whether the player is likely to make the roster or now. The first eight posts in the series too a look at wide receiver Leonte Carroo, punter Matt Haack, safety T.J. McDonald, running back Buddy Howell, wide receiver DeVante Parker, defensive end William Hayes, wide receiver Isaiah Ford, and safety/cornerback Walt Aikens. Today we look at undrafted free agent defensive end Claudy Mathieu.