This alternate San Diego Padres jersey was worn by Cal Quantrill for a September 20, 2019 Padres home game against the Arizona Diamondbacks. This jersey has a patch commemorating the 50th Anniversary of the San Diego Padres, and another patch commemorating 150 years of Major League Baseball.

Cal Quantrill is a Canadian professional baseball pitcher from Port Hope, Ontario. Quantrill is the son of Paul Quantrill, a former professional baseball player from London, Ontario. Cal Quantrill has played in Major League Baseball since 2019, and has represented Canada at the 18U Baseball World Championship, winning a silver medal.