Vladimir Guerrero, Jr. launched his 40th home run of the season on Monday.
Guerrero became the youngest member of the Toronto Blue Jays to reach 40 homers and he and his father are now one of just two father-son duos to reach the plateau, joining Prince Fielder and Cecil Fielder.
Vlad, Sr. hit 42 home runs when he was 24 with the Montreal Expos and reached the 40-homer plateau once more the next season.