![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://wehco.media.clients.ellingtoncms.com/img/photos/2022/04/15/1c-robinsonrgb.jpg)
MLB honors debut of Jackie Robinson
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://img.mlbstatic.com/mlb-images/image/upload/t_2x1/t_w1536/mlb/zrzivcyydo8mih5nkelu.jpg)
Reds celebrate Jackie Robinson Day with slate of events
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://ewscripps.brightspotcdn.com/dims4/default/4f0aee9/2147483647/strip/true/crop/1000x525+0+19/resize/1200x630!/quality/90/?url=https%3A%2F%2Fewscripps.brightspotcdn.com%2F26%2F7f%2F002f5a074ee788763bd7c7e9a7f0%2Fap21105449974625.jpg)
Why every MLB player is wearing No. 42 today
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://www.news10.com/wp-content/uploads/sites/64/2022/04/AP21107001465409.jpg?w=900)
Jackie Robinson Day, when MLB players can wear No. 42
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://www.usatoday.com/gcdn/presto/2023/04/16/USAT/d9c1cc73-6857-4d56-9f82-1a36a1347eec-USATSI_20470968.jpg?width=700&height=467&fit=crop&format=pjpg&auto=webp)
Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://i.ytimg.com/vi/f4hHjMEsp2I/maxresdefault.jpg)
Why are MLB players wearing No. 42 jerseys today?
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://img.mlbstatic.com/mlb-images/image/upload/t_2x1/t_w1536/mlb/z2x2ruftgzi4duotxvbf.jpg)
MLB teams' 2023 Jackie Robinson Day celebrations
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://www.usatoday.com/gcdn/presto/2023/04/16/USAT/74eba7a2-4c03-451f-b654-9507124bd075-USATSI_20471412.jpg)
Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer
![Jackie Robinson Day 2023: MLB players wear No. 42 to honor trailblazer](https://wehco.media.clients.ellingtoncms.com/timesfreepress/img/photos/2022/04/16/1650081651_AP22105622631073_gs_t600.jpg?4326734cdb8e39baa3579048ef63ad7b451e7676)
Major League Baseball celebrates 75th anniversary of Jackie