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'Now or never:' With new stuff, confidence and a reminder that baseball is fun, Keller ready to prove himself

ST. LOUIS – When he walked in the door, people stopped what they were doing around the facility and started to congregate.

They wanted to watch the “psycho.”

Five hours earlier, Mitch Keller caught a plane from Cedar Rapids, Iowa to finally set foot in Tread Athletics, a baseball facility in Charlotte, N.C. People here had seen on social media and heard what Keller had been doing this winter. The velocities he had been hitting. Now, they had to see it in person.

“When he came in that day, it was a different environment,” Devin Hayes, a performance coordinator at Tread Athletics, and the person who coined the “psycho” moniker on Keller because he threw in complete silence.