On July 30 , 1980 — During a workout at the Astrodome, Houston hurler J.R. Richard, who had on several occasions complained about a dead feeling in his arm, suffers a stroke attempting to throw for the first time since being hospitalized for tests. Emergency surgery is performed to remove a blood clot behind his right collarbone. His distracted teammates lose in Philadelphia, 6-4. Richard would never regain the coordination needed to resume his career.

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