Is there a more underappreciated player on the team? The guy just gets it done, year in and year out. And as Buck as noted, he now defends himself much better against left handed batters (.250 BA for LHB, .198 BA for RHB). The rest of his stats:
1.02 WHIP (second only to Britton's miniscule 0.91)
.215 OBA (again second to Britton's .184)
Plus, he rides a unicycle. What's not to like?