Harper becomes 2nd in history with two 20-HR seasons before age 21

Fernando Tatís Jr. - Wikipedia

Youngest players to homer in a playoff game

The Top 25 MLB Players for the 2023 Regular Season

Second-half season preview, playoff odds for all 30 MLB teams - ESPN

MLB seeks to attract new generation of ticket buyers - WHYY

Philadelphia Phillies vs. Atlanta Braves: NLDS Game 1 - WHYY

Amaro Jr. 'not concerned' about Harper's power outage – NBC Sports

Who won the Home Run Derby 2023? Vladimir Guerrero Jr. captures crown

30–30 club - Wikipedia

MORE