An Official American League baseball (Budig) that has been signed and inscribed by Hall of Fame Yankees catcher Yogi Berra. Berra has also inscribed the ball "90% of the game is half mental." The ball is in very good condition with small amounts of age toning and the signature is verified by PSA. One of the greatest catchers of all-time, Berra was also known for his sense of humor and interesting turns of phrase and this ball features one of his most famous phrases. A three-time American League MVP, Berra was inducted into the Baseball Hall of Fame in 1972.