Boston Red Sox relief pitcher Hirokazu Sawamura (18) during the

Boston Red Sox make 5 roster moves: Hirokazu Sawamura optioned to Worcester, Hansel Robles placed on IL

Wild finish: Orioles rally to beat Red Sox 2-1 in 10th

Red Sox reliever Hirokazu Sawamura aiming to elevate his game, zone delivery - The Boston Globe

Hirokazu Sawamura of the Boston Red Sox in action during the game News Photo - Getty Images

Red Sox notebook: Reliever Hirokazu Sawamura granted his release

Boston Red Sox pitcher Hirokazu Sawamura talks to the media before Game 1 of baseball's American League Championship Series against the Houston Astros Friday, Oct. 15, 2021, in Houston. (AP Photo/Tony Gutierrez

Wild finish: Orioles rally to beat Red Sox 2-1 in 10th

Hirokazu Sawamura tests positive COVID-19

Could Dodgers take chance on another recently released Red Sox reliever?

Martinez's 2-run homer in 9th lifts Red Sox over Jays 8-7