There are 98 relievers in the American League who have thrown at least 20 innings in relief this season, an average of seven relievers per team.
The one who has the lowest ERA among those 98 pitchers? That would be the Rangers' Doug Mathis, who entered Wednesday with an 0.90 ERA as a reliever. He also has the lowest baserunners per nine innings among that group, allowing 7.20 per nine innings.
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