5. Mike Pennel Jr. - Defensive Tackle
The final player on this list is another defensive player. Mike Pennel Jr. turned himself into a valuable piece of the Chiefs defensive line and had an exceptional postseason, likely earning himself an extension. He only played in three regular-season games and appeared to be an afterthought, but he emerged in the playoffs, playing every contest en route to the Super Bowl win. With Derrick Nnadi injured, Pennel stepped in and made a massive impact with a forced fumble of Christian McCaffrey, plus significant disruption in the middle of the defense. Pennel Jr. was only on a one-year deal, but his postseason play makes it likely KC will try to bring him back for next season.