Roy Halladay's Number is Retired by Toronto Blue Jays - The New York Times
Phillies retire Halladay's No. 34 in tribute to late ace
Citing Back Problems, Halladay Retires After 16 Years and 203 Wins - The New York Times
Retired pitcher Roy Halladay killed in plane crash - The Boston Globe
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Toronto Blue Jays will retire former pitcher Halladay's No. 32 jersey - Agassiz-Harrison Observer
Blue Jays' All-Time Retired Numbers
Roy Halladay Will Have Jersey Retired by Phillies
Former Blue Jays pitcher Roy Halladay, Expos slugger Vladimir Guerrero headline Canadian Baseball Hall of Fame class of 2017
Phillies to retire Halladay's 34 on perfect game anniversary
Hall of Famer Roy Halladay a one of a kind starting pitcher