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.

Shawn Tolleson retires from baseball

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Evan Grant of the Dallas Morning News reports that reliever Shawn Tolleson is retiring from baseball. The right-hander experienced a setback in his recovery from Tommy John surgery last week.

Tolleson, who turns 31 years old on Saturday, last pitched in the majors in 2016. He had two very good years out of the bullpen for the Rangers in 2014-15, posting an aggregate 2.88 ERA with 145 strikeouts and 45 walks across 144 innings.

Tolleson signed a one-year deal with the Rays in January 2017 before undergoing Tommy John surgery several months later. The Rangers inked him to a minor league contract in December 2017, but he wasn’t able to work his way back.