ORLANDO: Roy Halladay, who had a reputation as a dominant hard-working starting pitcher, retired Monday after signing a one-day contract with the Toronto Blue Jays. The 36-year-old American right hander signed the deal and then immediately retired from the Blue Jays whom he spent 12 seasons playing for. Halladay pitched the last four years of his brilliant career with the Philadelphia Phillies. He earned 203 career wins but the last few seasons he has been beset by injuries which limited his time on the mound. Halladay underwent surgery in May to repair a partially torn rotator cuff and remove a bone spur. He has since struggled with velocity, finishing with a 6.82 earned run average in 13 starts last season.