Phillies to retire late Roy Halladay's No. 34 on perfect game anniversary
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Phillies retire Roy Halladay's No. 34 in tribute to late ace โ The Denver Post
Which Phillies should have their jersey number retired next?
Philadelphia Phillies retire Roy Halladay's No. 34 jersey in tribute to late ace - ESPN
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Phillies to retire Roy Halladay's No. 34 on May anniversary of his perfect game
As cases for Roy Halladay and Dick Allen point out, baseball's retired numbers are multiplying