This Day in History: Fernando Tatis Sr. Hits Two Grand Slams in Same Inning! - Fastball
MLB weekend winners and losers: Fernando Tatis Jr. clubs five homers vs. Dodgers; bad day for Braves' bats
One of MLB's rising stars hit a grand slam. He was chastised for ignoring the 'unwritten rules' - The Boston Globe
Cardinals repeatedly passed on Padres' young phenom Tatis Jr., Sports Eye
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Like father, like son: Tatís hits 2 HRs, Padres beat LA 6-1
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Dodgers see Padres' Fernando Tatis Jr. celebrate his father's day at their expense – Press Telegram
Padres: Fernando Tatis Jr. made some family history against Dodgers
Two Grand Slams - Fastball
April 23, 1999: Fernando Tatis hits two grand slams in one inning – Society for American Baseball Research
Manager Fernando Tatis invites 40 players to Dominican Republic camp as nation eyes Olympic baseball qualifier in June - World Baseball Softball Confederation
An electrifying moment': The night Fernando Tatis hit two grand slams in the same inning
Fernando Tatis hit 2 grand slams in 1 inning
Tatis hits two grand slams in one inning vs. Dodgers
Fernando Tatis Jr. is bringing joy back to baseball