Red Sox notebook: On Jackie Robinson Day, Alex Cora wants his team to play the right way
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times
Mariano Rivera is last player to wear No. 42
Yankees' Mariano Rivera Is the Last No. 42 - The New York Times
Baseball honors Jackie Robinson
Yankees pay tribute to the great Mariano
Yankees' Mariano Rivera Inducted into Hall of Fame in 1st Ever Unanimous Vote
Why every MLB player is wearing No. 42 today
Rays' wins on Jackie Robinson Day, examined