Closer: Cody Allen, Cleveland Indians

Anyone paying close attention to Cleveland's 2016 postseason run got a good look at Allen's role in the team's success, whether he was shutting the door in the ninth inning or working out of a men-on-base jam in the seventh or eighth. Not only has Allen saved 90 games over the past three years, but he's also delivered a 2.52 ERA with 12.0 strikeouts per nine, averaging 69 innings and 1.8 WAR.

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