The Seattle Mariners will retire Johnson’s No. 51 during the 2026 season, announced on the 35th anniversary of his no-hitter against the Detroit Tigers on June 2, 1990. The 6-foot-10 southpaw appeared in 10 seasons with the Mariners (1989-98) and his 2,162 strikeouts in a Seattle uniform rank second in team history.

The Seattle Mariners are retiring No. 51 this coming summer for Hall of Famer Ichiro Suzuki, but there will be two names attached to the retired number from the 2026 season on. Randy Johnson, who also wore No.

Randy Johnson, perhaps the greatest left-handed pitcher of all time, will have his No. 51 retired by the Mariners, the club announced Monday morning.