A lot has been made about John Mateer’s throwing motion, after his injury. “We all saw what it was,” Mateer said. This is a behind-the-scenes look into Mateer’s mechanics and how he’s improving them, including working with a biomechanics specialist:

George Stoia@GeorgeStoia

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A lot has been made about John Mateer’s throwing motion, after his injury. “We all saw what it was,” Mateer said. This is a behind-the-scenes look into Mateer’s mechanics and how he’s improving them, including working with a biomechanics specialist:

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Jun 29, 2026, 12:54 PMView original on 𝕏 →

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