just four teams
Uncle Mike's Musings: A Yankees Blog and More: October 6, 1969: The Mets' 1st Pennant
Roy Halladay Playoff No-Hitter: Power Ranking His Top 10 Pitching Performances, News, Scores, Highlights, Stats, and Rumors
Toronto Blue Jays select Braden Halladay in MLB draft
Roy Halladay was one of the best Major League Baseball had ever seen - Sports Illustrated Vault
2011 New York Yankees Media Guide, PDF, Ball And Bat Games
design and layout excellence by Manhattan Mercury - Issuu
Roy Halladay Postseason No-Hitter: 10 Reasons Don Larsen's Was More Impressive, News, Scores, Highlights, Stats, and Rumors
Lincecum outduels Halladay, Giants lead NLCS 1-0 - The San Diego Union- Tribune