Boston Red Sox 2021 in Review: Hirokazu Sawamura's MLB debut - Over the Monster
Hirokazu Sawamura, Austin Davis designated for assignment
MLB playoffs 2021: How the Boston Red Sox overcame a COVID outbreak and made it to the ALCS - ESPN
Boston Red Sox 2021 Season Preview: Can Hirokazu Sawamura bring some control to the late innings? - Over the Monster
Hirokazu Sawamura - MLB News, Rumors, & Updates
Red Sox pitcher Hirokazu Sawamura tests positive for COVID-19
Watch Intriguing Highlights Of New Red Sox Pitcher Hirokazu Sawamura
Red Sox shake up 'pen, DFA Sawamura, Davis
Red Sox beat Blue Jays on J.D. Martinez's homer with two outs in the ninth
Hirokazu Sawamura - Boston Red Sox Relief Pitcher - ESPN