Boston Red Sox Series Preview: Can Hirokazu Sawamura find a trustworthy second pitch? - Over the Monster
Red Sox shake up bullpen as Hirokazu Sawamura, Austin Davis both designated for assignment - The Boston Globe
the joy of sox: 2021-03
Chris Booth
colten brewer – Blogging the Red Sox
the joy of sox: 2021-03
Red Sox Reportedly Make More Bullpen Moves, DFA Veteran Righty
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Hirokazu Sawamura Reacts To Spring Training Debut With Red Sox