Ken Griffey Jr. goes to Hall of Fame with Mariners cap

Ken Griffey Jr. Hall of Fame Merchandise, by Mariners PR

Ken Griffey Jr. goes to Hall of Fame with Mariners cap

Griffey goes to Hall with Mariners cap; Piazza with Mets

Ken Griffey Jr. to officially enter Hall of Fame as a Mariner

Griffey Jr goes to Hall with Mariners cap; Piazza with Mets

Ken Griffey Jr. and Mike Piazza stand on the stage wearing their Hall of Fame jerseys and hats at the National Baseball Hall of Fame and Museum class of 2016 press conference

Will Ken Griffey Jr. wear a backwards cap on plaque? Hall of Fame 'open to' idea – New York Daily News

Hall of Famer Ken Griffey Jr. joins Mariners ownership group

Ken Griffey Jr. will be honored by Mariners with these sweet caps

Ken Griffey Jr Seattle Mariners Hof Signed Auto 5950 New Era Pro Cap Hat Jsa Loa