Angels and Mariners lock arms in show of support on Jackie Robinson Day – Orange County Register
On This Date: Mariners Retire Ken Griffey Jr.'s Number 24, by Mariners PR
Should the Mariners retire Seager's number? - Baseball Together
Every MLB team's retired numbers
Every MLB team's retired numbers
Seattle Mariners fans react to report that Felix Hernandez will be inducted into Mariners Hall of Fame: Nobody else should be wearing 34
Twins to retire number for Hall of Fame-elected Kaat - NBC Sports
New York Yankees retired numbers: Is team too generous? - Sports Illustrated
Edgar Martinez's Number 11 Retired by the Mariners, by Mariners PR
Mariano Rivera Wearing Jackie Robinson's 42 to the End - The New York Times