WAR: 14.8

RA9-WAR: 13.9; RAR: 135.8

FDP-Wins: -0.8; BIP-Wins: 0.5; LOB-Wins: -1.4

Say what you will about Aroldis Chapman's injuries and off-the-field issues, but the dude numbers put up numbers. He has accumulated at least 33 saves in each of his five seasons, and 188 in total. He's struck out a ridiculous 15.17 batters per 9, while pitching his way to four All-Star games and one MLB title.