ANAHEIM, CA - AUGUST 30: Yohan Ramirez #42 of the Seattle Mariners gets ready to pitch in the tenth inning against the Los Angeles Angels at Angel Stadium of Anaheim on August 30, 2020 in Anaheim, California. The Seattle Mariners are wearing #42 in honor of Jackie Robinson Day. The day honoring Jackie Robinson, traditionally held on April 15, was rescheduled due to the COVID-19 pandemic.(Photo by John McCoy/Getty Images)
There are just 42 days until the Seattle Mariners start their 2021 season. 42 was also the number of the great and groundbreaking Jackie Robinson. While Seattle has had a few players wear number 42, Dave Henderson being the most productive one who played for Seattle between 1981 and 1986, no Mariners player will ever wear number 42 again.