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Daniel Murphy, playoff hero with 2015 Mets, retires
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Romo, three-time World Series winner, to retire with Giants - NBC Sports
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Carlos Beltran retires after 20-year career
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Yankees pitcher Andy Pettitte to retire at end of season, New York Yankees
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The Yankees Retire Paul O'Neill's Number 21 - The New York Times
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Nolan Ryan, Biography, Stats, & Facts
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World Series champion pitcher, 4-time All-Star retires after 15 seasons
![World Series champion pitcher, 4-time All-Star retires after 15 seasons](https://upload.wikimedia.org/wikipedia/commons/thumb/3/36/Mariano_Rivera_allison_7_29_07.jpg/800px-Mariano_Rivera_allison_7_29_07.jpg)
Mariano Rivera - Wikipedia
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World Series MVP Stephen Strasburg has decided to retire, AP source says - WTOP News
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Phillies World Champion Jayson Werth retires, what's his legacy in Philadelphia?
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Phillies legend Cole Hamels retires from MLB after 15 seasons
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Yankees' Andy Pettitte hanging up pinstripes
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Kansas City Royals reliever Wade Davis retires after 13-year career
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Phil Niekro, Hall of Fame Knuckleball Pitcher, Dies at 81 - The New York Times