Bobby Doerr, Baseball Wiki
Dennis Eckersley, Baseball Wiki
San Francisco Giants - Wikipedia
Every MLB team's retired numbers – NBC Sports Chicago
I was researching team statistics on PFR and noticed they added Brady's jersey to the retired numbers list, although it hasn't been officially announced yet? : r/Patriots
Retired Numbers, New York Mets Wiki
Retired Uniform Numbers in the American League
Colorado Rockies - Wikipedia
List of Major League Baseball retired numbers - Wikipedia
Montreal Expos - Wikipedia
Every MLB team's retired numbers