This 2017 All Star Game baseball is signed by members of the American League squad. Included on the ball are manager Brad Mills, Chris Sale, Justin Upton, Luis Severino, Craig Kimbrel, Jason Vargas, Andrew Miller, Yonder Alonso, Michael Brantley, Dallas Keuchel, Michael Fulmer and Corey Kluber. The baseball will come with a Certificate of Authenticity from Authentic Memories Sports & Entertainment Memorabilia.