Roy Halladay
Harry Leroy Halladay III (May 14, 1977 – November 7, 2017) was an American professional baseball pitcher who played in Major League Baseball (MLB) for the Toronto Blue Jays and Philadelphia Phillies between 1998 and 2013. His nickname, "Doc", coined by Toronto Blue Jays announcer Tom Cheek, was a reference to Wild West gunslinger Doc Holliday.