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.
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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."
