Why every MLB player is wearing No. 42 on Monday
Mariano Rivera linked to Jackie Robinson for No. 42
Mariano Rivera the Last to Wear Jackie Robinson's No. 42 - Parade
Mariano Rivera - Wikipedia
Jackie Robinson Day Museum of the City of New York
Now honoring No. 42: Jackie Robinson Day in majors - The San Diego Union-Tribune
Mariano Rivera visits Baseball Hall of Fame for first time - ABC7 New York
MLB celebrates Jackie Robinson
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times