Miller, 35, appeared in 108 games for the Marlins in 2007 and '08, going 9-2 with a 3.90 ERA. He last pitched in the majors in 2010 with the Dodgers. In seven major league seasons, Miller went 24-14 with a 4.82 ERA.
Miller was perhaps best known for his tattoos. He had so many of them that in 2004 Major League Baseball required him to wear long sleeves after hitters complained his tattoos were a distraction to them.