Glen Perkins, stat-head closer

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Parker Hageman at Twins Daily has an excellent article about Twins left-hander Glen Perkins, who went from injured, mediocre starter to excellent late-inning reliever and now full-time closer.

Perkins talked about how he started getting into sabermetrics when he was hurt in 2010 and has embraced statistical analysis ever since:

I didn’t get into any advanced stats until 2010 when I was in Triple-A and struggling. It was a combination of [Ryan] Vogelsong and when Brandon McCarthy came back and I started to hear about those guys who were injured or unsuccessful and then they adjusted their pitch selections and focused doing different things. That got me thinking, maybe it’s something I should do.

Since then Perkins has 132 innings with a 2.52 ERA and recently signed a $12 million contract.

There’s also some interesting stuff from Perkins about the unreliability of Pitchf/x classifying his pitches and whether or not he believes the numbers when they show he’s getting squeezed by umpires. Definitely worth checking out the whole article. Good stuff.

Report: Welington Castillo to be suspended 80 games for violating Joint Drug Agreement

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Ken Rosenthal of The Athletic confirms a report from journalist Américo Celado that White Sox catcher Welington Castillo will be suspended 80 games for violating baseball’s Joint Drug Agreement. Castillo was believed to have used a steroid, but according to Rosenthal, the substance was not a steroid. More details should come on Thursday.

Castillo, 31, entered Wednesday’s action batting .270/.314/.477 with six home runs and 15 RBI in 118 plate appearances. He has gotten the bulk of the work behind the plate, backed up by Omar Narváez.

Castillo’s absence will likely prompt the White Sox to call up Kevan Smith from Triple-A Charlotte. Smith battled an ankle injury in March and April, so he got a late start to the season. In 102 PA at Triple-A, he has hit .283/.343/.457.