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How players are using uniform numbers to break MLB's unwritten rules - ESPN
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Mariners Spring Training 2023: New MLB rules, full schedule
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San Diego Padres - Wikipedia
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Seattle Mariners wear two different uniforms during spring training game – SportsLogos.Net News
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Seattle Mariners Drop Grey Unis for 2023, Navy Blue now Primary Road Jersey – SportsLogos.Net News
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Seattle Mariners - Wikipedia
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Mariners Spring Training 2023 FAQ
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Seattle Mariners unveil new spring training uniforms
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MLB Uniform Changes: Clubs will be restricted to four distinct uniforms for the 2023 season
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Best Uniforms Not Being Used Anymore (NL West Edition) : r/baseball
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GSA Spotlight: Healthy Chavers Does It All For Coastal
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Amid high expectations, the message around the Mariners stays the same — 'get better
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What's Your Sign(ature) - Seattle Mariners