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Famous MLB traitors

There are any number of reasons that a baseball player might end up playing on both sides of a famous rivalry. Maybe he was offered a big free agent contract. Maybe he was part of a trade. Maybe he was in the late stages of his career and had nowhere else to go. Whatever the case, here's a look at some of baseball's most famous "traitors" of the past few decades, starting with new Los Angeles Dodgers reliever Brian Wilson.

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