July 3 (UPI) -- Toronto Blue Jays rookie Vladimir Guerrero Jr. hit some monster long-balls during a practice session for the 2019 Home Run Derby.
Guerrero, 20, got in the practice hacks before the Blue Jays lost to the Boston Red Sox Tuesday at Rogers Centre in Toronto. He will be among eight players participating in the slugfest Monday at Progressive Field in Cleveland. The 2019 MLB All-Star Game takes place Tuesday, July 9 in Cleveland.