In the fall of 2018, members of the Seattle Mariners’ offseason High Performance Camp were working out in the weight room at the spring training complex in Peoria, Ariz.

The camp focuses on developing the young players mostly without touching a baseball, instead filling days with workouts, class work, mental skills and community service. Among the group of top prospects who were selected to participate were Logan Gilbert, who was the organization’s No. 1 draft pick earlier in the summer, and Cal Raleigh, who the Mariners took with their third pick.

At some point during the workout, Raleigh picked up a glove that had been laying around in the gym, dropped to a squat and shouted at Gilbert across the room to fire one in. Gilbert, who had a baseball in hand, complied, lobbing the ball acros

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