Winter Classic 2023: Bruins, Penguins wear throwback MLB uniforms to honor historic Red Sox, Pirates teams
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Penguins Winter Classic jersey inspired by old Pittsburgh Pirates
Bruins players wear vintage Red Sox uniforms before Winter Classic
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Bruins unveil 2023 Winter Classic jerseys to be worn at Fenway Park
Bruins unveil 2023 Winter Classic jerseys to be worn at Fenway Park
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