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MLB Rookie Profile: Mark Leiter Jr, RHP, Philadelphia Phillies
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Mark Leiter Jr. Statcast, Visuals & Advanced Metrics
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Mark Leiter Jr. turns in historic relief outing in Phillies' 5th
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Mark Leiter Jr. Stats, Fantasy & News
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Saint Peter's Baseball Concludes Road Slate With Final Non
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Mark Leiter Jr. Stats, Fantasy & News
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Mark Leiter – Society for American Baseball Research
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0416 Mark Leiter Jr - Marquee Sports Network
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One pitch leads to three unlikely paths to Phillies' bullpen
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Jack Leiter selected by Texas Rangers at No. 2 pick in 2021 MLB Draft
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Mark Leiter Jr. Foul to Jeff McNeil, 12/09/2022
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2017 Phillies player review: Mark Leiter, Jr. - The Good Phight
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Opponent Preview: NJIT - Backing The Pack