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Predicting the additions to the Mariners' 40-man roster [UPDATED] - Lookout Landing
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Rosenthal: What's gone wrong with the Mariners? Plus Yankees' bullpen, Evan Longoria's Hall resumé - The Athletic
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Rays' bullpen to feature Opener again in 2019
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40-Man Roster Seattle Mariners
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Mariners 40-Man Roster Players Most Likely to Go This Offseason
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Rosenthal: Why Altuve's deal makes sense; Boras gives his side; stop worrying about Ohtani; more notes - The Athletic
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Top 47 rule, roster and schedule changes to know before the 2020 MLB season
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Mariners add 4 prospects to 40-man roster
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Orioles spring training: Tommy Milone joins crowded competition
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Fantasy Baseball Waiver Wire: Jose Quintana, Devin Williams, & Jorge Alfaro (2022)
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Rays Add Depth Without Using 40-Man Space, Seattle Scoops DFA'd Bazardo