He dealt Casey Mize to the San Diego Padres for their No. Mize’s velocity is trending in the wrong direction, and his final start with the Tigers was a real eye-opener for Harris. Casey Mize sat 94.1 mph with his slowest four-seamer hitting 93.3 mph two starts ago. His fastball was even falling under 90 mph throughout his final Tigers start. Mize’s horrid debut with the Padres might just be the first step in proving that Harris was right about this deal.