Despite ranking in the top six in both batting average against and strikeouts, the White Sox bullpen weighs in with a 4.41 ERA on the season. Still, Thornton isn't worried.
"As a reliever, ERA is something I don't really pay attention to, because all it takes is one pitch," Thornton said. "ERA is something you can't really pay attention to as a bullpen. You look at your WHIP, how many baserunners you're allowing, and batting average against. That's a lot more important than ERA."
The logic is that if the bullpen continues to make pitches and hold opponents to a low batting average, eventually the ERA will fall into place. The White Sox have also logged a pedestrian 89 2/3 innings pitched this year, so there is time for the ERA to come down.
"I really think we have a lot of good arms out there, a lot of guys doing a good job, so I don't see it [staying this high]," Thornton said. "I think Tony [Peña] is in the sixes right now, and in his career he's never been anywhere near that."