A moment he’s dreamed about forever ❤️👏 Twins RHP John Klein made his big league debut just 15 minutes from his hometown. A Brooklyn Park native and graduate of Osseo High School, Klein would ask for Twins tickets on his birthday every year growing up. Yesterday, the Twins #20 prospect finally made his MLB Debut for his hometown team in front of over 30 family and friends. In his debut, Klein tossed 1 IP with 0 H and 0 ER. After the game, the MLB Debut patch was removed from his jersey and will be placed inside a 1-of-1 trading card 👀