Yianni Pavlopoulos is a rookie for the ThunderBolts in 2019. He signed with the team on November 15, 2018 out of Ohio State University. There, he appeared in 70 games (12 starts) over four years. He went 7-13 with a 4.93 ERA and, as a senior in 2018, went 1-4 with a 4.95 ERA. His best success came as a sophomore, when he finished with a 3.03 ERA and led the Big Ten with 14 saves. His 16 career saves rank fifth in Ohio State history. Yianni attended Providence Catholic High School in New Lenox, Illinois.