Are foreign substances "performance enhancers"? Analyzing Pearson's, Manoah's pitching styles & Jays' pitching development w/ Dr...

Join The Atheltic for just $3.99 a month! Visit: theathletic.com/spinrate Drew welcomes 3Motion AI chief scientist, Dr. Mike Sonne, to Spin Rate!...

By Drew Fairservice and Kaitlyn McGrath

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