According to CBS Sports' Jon Heyman, free agent Roy Halladay has decided to retire from baseball. Halladay dealt with shoulder issues throughout the 2013 season and will hang up his cleats for good at age 36 rather than trying to reestablish his value with a new team in 2014. The right-hander will finish up with a 203-105 career win-loss record and a 3.38 career ERA. He signed a one-day contract Monday with the team that drafted him -- the Blue Jays -- so that he could officially call it quits in that uniform.