You are purchasing a.. Jacob Misiorowski Autographed Rawlings OMLB Baseball with PROVA Witnessed Certificate of Authenticity. Milwaukee Brewers rookie Jacob Misiorowski became the first starter in 125 years to record 11 hitless innings to begin his MLB career. Currently the NL ROY front runner, he was also the quickest player ever to be named an All-Star when he was selected to play in the 2025 MLB All-Star Game in Atlanta where he pitched a scoreless 8th inning. Add this GEM of a baseball to your collection today! These baseballs were signed on August 1st, 2025 in Arlington, VA during our private signing with The Miz. We have dozens of these baseballs so the one in the photo most likely will not be the exact baseball you will receive but one nearly identical. PROVA offers the most efficient and timely authentication process on the market today. In three easy steps, your item’s history is on the digital books. Each autograph is witnessed in person and a PROVA SmarTag is placed on each ball as they are signed. This gives you documented proof the item is yours. No other authenticator provides this service. Founded by Maryland native Alan Moore, SportsGraphing is an online community for sports autograph collectors. With a history of organizing and participating in hundreds of autograph signings with athletes, celebrities, and politicians, we specialize in providing authentic, certified autographs at reasonable prices.