Harrison seems to have plenty left in the tank, recording 53 tackles, two forced fumbles and one interception in 2016. He's a widely respected and consistent force off the edge on a Steelers defense that desperately needed his presence, one that remains a major problem for opposing offensive lines (Exhibit A: Harrison vs. Eric Fisher in a major moment). Few things are more motivating for one more year (at least) than the bitter taste of defeat on the doorstep of the Super Bowl.