Every team has a player who might not be getting the recognition merited by his play, either on a national level or from his own team. Here are the league's biggest unsung heroes, one for every team.
American League
Baltimore Orioles: LHP Richard Bleier. The Orioles lefty is putting up a line from the dead ball era: an 11.5 percent strikeout rate, a 3 percent walk rate and no homers allowed in 32 innings. Not much is going right for the O's this season, but the bullpen has been decent, and Bleier has played a big role.
Boston Red Sox: 1B Mitch Moreland. On a loaded Sox squad, Moreland has been one the league's best hitters with a .287/.362/.569 line, including 10 homers in fewer than 200 plate appearances. The lefty first baseman appears to have rebounded after two below-average seasons.
Chicago White Sox: 1B Jose Abreu. The first baseman might not fit the typical definition of unsung given his status around the league, but as the White Sox continue their rebuild, it is worth mentioning that Abreu continues to produce at a high level. His line of .295/.351/.519 is nearly identical to his career averages.
Cleveland Indians: RHP Mike Clevinger. In a rotation stocked with the likes of Corey Kluber, Carlos Carrasco and Trevor Bauer, Clevinger doesn't get a ton of attention. His strikeout numbers aren't as eye-popping as last season's, but his 3.46 FIP and 3.31 ERA are both in the AL's top 15.