The Seattle Mariners will welcome Ken Griffey, Jr. back and retire his No. 24 at Safeco Field.

Jackie Robinson's No. 42 is currently the only number the franchise has retired.

"Having my number next to him, I don't think I did half of what he did," Griffey said. "Baseball-wise, yeah, you're going to look at numbers and things like that, but the way he went about his life and the things he did off the field, nobody can compare to that. He is a trailblazer in more ways than one."

It was announced last week that Griffey was elected to the Hall of Fame.