![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://images.squarespace-cdn.com/content/v1/5984890903596eaddbfc4532/1505498088602-6LW9S0P0FXQ4JRMLU3F6/MO.jpg?format=1000w)
Mariano Rivera Might Never Have Worn 42 — Todd Radom Design
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://www.si.com/.image/t_share/MTY4MjU4OTEyNjc2NTU0NjUz/image-placeholder-title.jpg)
42 things you need to know about Mariano Rivera - Sports Illustrated
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://static01.nyt.com/images/2013/03/14/sports/baseball/14mariano-2/14mariano-2-articleLarge.jpg?quality=75&auto=webp&disable=upscale)
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/o9phjepz1pbxdv79yb2a)
Jackie Robinson Day 2020 complete guide
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://securea.mlb.com/assets/images/1/3/4/69683134/cuts/Rivera_1280_gb21evgo_lzipfdr0.jpg)
Rich tradition of retired numbers part of game's legacy
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://img.mlbstatic.com/mlb-images/image/private/t_2x1/t_w1536/mlb/oobvfrgcdkdv0jg7uirp.jpg)
Mariano Rivera linked to Jackie Robinson for No. 42
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://www.liderendeportes.com/wp-content/uploads/2020/04/Dise%C3%B1o-sin-t%C3%ADtulo113.jpg)
Mariano Rivera proud to be MLB's last 42nd number - Líder en deportes
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://securea.mlb.com/assets/images/3/3/2/58616332/cuts/mo640_gpejlxoo_ecld5rte.jpg)
Beginning of Rivera Era was far from smooth
![New Clip, Major League Baseball, New York Yankees, baseball, The last active MLB player to wear 42: Mariano Rivera. Mo's retired by the Yankees, Jackie Robinson's retired across baseball.](https://x-default-stgec.uplynk.com/ausw/slices/ffe/1fc9d2805b3e4e6c81b38049210ea338/ffe7a222aee44dd283650ffd0b5f5359/poster_38f5a16a57b3494db2684953fb5b8ce9.jpg)
MLB players to wear #42 Monday to honor Jackie Robinson Day