Top Prospects: Hjelle, SF
July 25, 2018 | 00:00:32
2018 MLB.com Top Prospects: Sean Hjelle's fastball velocity has increased from the high 80s in high school to the low 90s in college
2018 MLB.com Top Prospects: Sean Hjelle's fastball velocity has increased from the high 80s in high school to the low 90s in college