Hirokazu Sawamura's early outings aren't encouraging, but Red Sox expected an adjustment period - The Boston Globe
Boston Red Sox's Hirokazu Sawamura hit 93.5 mph with his splitter in MLB debut, 12 mph faster than Koji Uehara's average split velo in 2013 - masslive.com
Hirokazu Sawamura - RH Relief - Boston Red Sox Digital Art by Bob Smerecki - Pixels
Red Sox' Hirokazu Sawamura continuing to gain confidence in new environment
Red Sox pitcher Hirokazu Sawamura tests positive for COVID-19
Red Sox reliever Hirokazu Sawamura adjusting to new role
2021 Topps Update Hirokazu Sawamura Rookie Boston Red Sox RC #US117 | eBay
Hard-throwing prospect Zack Kelly ready for debut after Red Sox DFA Austin Davis, Hirokazu Sawamura
MLB: Red Sox pitcher Hirokazu Sawamura only Japanese in playoffs - The Mainichi
Baseball: Hirokazu Sawamura pitches scoreless ninth in MLB debut for Red Sox
Japanese reports: Red Sox add reliever Hirokazu Sawamura on two-year deal - The Boston Globe
Hirokazu Sawamura's first Red Sox bullpen session
Why did Boston Red Sox option Hirokazu Sawamura, put Hansel Robles on IL? Alex Cora explains - masslive.com
Is a better baseball the best solution for MLB's sticky situation? Hirokazu Sawamura thinks it might be - The Boston Globe