Fernando Tatis Jr. / Vladimir Guerrero Jr.

Fernando Tatis Jr. clubbed his 40th home run in the bottom of the seventh inning in Wednesday night's NL West Division showdown between the San Diego Padres and the San Francisco Giants. With this blast, 'El Niño' became just the fifth player in franchise history to eclipse this mark. Additionally, Tatis Jr. and Vladimir Guerrero Jr. became the first duo in MLB history to both have 40-homer seasons at age 22 or younger.