SEATTLE -- The Big Unit will take center stage as part of a big ceremony when his No. 51 jersey is retired by the Mariners, which the club announced on Thursday will take place on May 2 .

That Saturday night’s game is slated for a 6:40 p.m. PT first pitch against the Royals, and it will coincide with a special pregame ceremony.

Randy Johnson ’s number will become the fifth retired in club history, along with Hall of Famers Ken Griffey Jr. (No. 24), Edgar Martinez (No. 11) and Ichiro Suzuki (No. 51), as well as Hall of Famer Jackie Robinson (No. 42), which has been retired by all MLB teams.

In addition to Johnson’s ceremony on May 2, the Mariners will also host Randy Johnson ‘80s Jersey Night presented by T-Mobile on May 1 for the first 20,000 fans.

The club had announced plans for

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