This Day in History: Fernando Tatis Sr. Hits Two Grand Slams in Same Inning! - Fastball

NKU player staying even keel after two grand slam peformance

Two Grand Slams - Fastball

An electrifying moment': The night Fernando Tatis hit two grand slams in the same inning

Cardinals repeatedly passed on Padres' young phenom Tatis Jr., Sports Eye

Fernando Tatis Jr., Sr. become first father-son duo with multi-HR game at same ballpark on same day - Article - Bardown

Fernando Tatis Jr. News, Biography, MLB Records, Stats & Facts

Holy Smokes: Padres Rave About Tatis Jr.'s Big Contract

Lin: Friends Chan Ho Park and Fernando Tatis Sr. share baseball history—and the desire to see top Padres prospect Tatis Jr. succeed - The Athletic

Dodgers see Padres' Fernando Tatis Jr. celebrate his father's day at their expense – Orange County Register

Same name, same dream: Fernando Tatis Jr. might surpass his proud father and stay with the Padres 'forever' - The Athletic