Before joining the Giants, Mapson spent 11 years with the Cubs. His highlight of that tenure was signing right-hander Greg Maddux in 1984. Maddux proceeded to win 355 games during a career that likely will land him in the Hall of Fame.
Chris Haft is a reporter for MLB.com. Read his blog, Haft-Baked Ideas, and follow him on Twitter at @sfgiantsbeat. This story was not subject to the approval of Major League Baseball or its clubs.