This is a preview of the Joe Sheehan Baseball Newsletter, an e-mail newsletter about all things baseball, featuring analysis and opinion about the game on and off the field from the perspective of the informed outsider. Joe Sheehan is a founding member of Baseball Prospectus and a contributor to Sports Illustrated and Baseball America. He has been writing about baseball for nearly 25 years.Your subscription gets you the newsletter and various related features two to five days a week, more than 150 mailings (more than 200,000 words) a year full of smart, fun baseball writing that you can't find in the mainstream. Subscribers can also access the new Slack workspace, to talk baseball with me and hundreds of other Newsletter subscribers.
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"That drop in strikeout rate is meaningful. When I looked at this last month, I saw that strikeout rates were pretty consistent from one “half” to the next. A 1.1% decline in the strikeout rate in-season is a very big change, and the best argument for the idea that the use of grip enhancers had gotten out of control."