It's Hall of Fame ballot season, so let the debating begin - The Boston Globe
Former Blue Jay Roy Halladay was the most dominant pitcher of his era
Predicting Today's Hall of Fame Voting Results
One baseball connects two 2019 Hall of Fame inductees
Doc's Return: Halladay on coaching, the Hall of Fame, and possible permanent role with Phillies
Roy Halladay inducted into Baseball Hall of Fame - 6abc Philadelphia
Mariano Rivera 1st unanimous Hall of Fame pick; Roy Halladay, Edgar Martinez, Mike Mussina also in
Who was the better reliever in their prime, Mariano Rivera or Dennis Eckersley? - Quora
Rivera taught Roy Halladay the grip for his cutter
Bullpen Diaries by Charley Rosen - Ebook