This is one of the only companies that Greinke deals with to identify and log his signatures. The baseball is pure white with no evidence of toning. The Selig baseball comes with a matching seal sticker on it. Greenie also added his uniform number of 23 that he had with the Royals and also later with the Angels. A true beauty of a baseball signed and autographed on the sweet spot.
The item "Zack Greinke 23 Signed Official Major League Baseball With COA, Royals, Cy Young" is in sale since Thursday, March 18, 2021. This item is in the category "Sports Mem, Cards & Fan Shop\Autographs-Original\Baseball-MLB\Balls". The seller is "kiick1" and is located in Summerville, South Carolina. This item can be shipped to United States.