DETROIT – Ron Gardenhire announced Saturday he was retiring as the Tigers' manager, effective immediately. Gardenhire worked 16 years in Major League management, spending the last three seasons with the Tigers. Prior to Detroit, Gardenhire worked as a bench coach for the Arizona Diamondbacks in 2017 and managed the Minnesota Twins from 2002-2014. “On behalf of all of us with the Detroit Tigers, congratulations to Ron Gardenhire on a tremendous managerial career,” said Detroit Tigers Chairman and CEO Christopher Ilitch. MORE: Detroit Tigers news