MLB Stats on X: #OTD in 1999, Fernando Tatis Sr. hit two grand

Moneyball: Tatis took cash as prospect, owes part of fortune

OTD: Tatis Sr.'s two grand slams, OTD in 1999, Fernando Tatis Sr. hit two grand slams in one inning. He's still the only player to EVER do that., By MLB

Cardinals @ Dodgers 4/23/99 (Fernando Tatis Two Grand Slams in One Inning)

Langs) April 23, 1999: Fernando Tatis Sr. hits 2 grand slams in 1 inning at Dodger Stadium April 23, 2021: Fernando Tatis Jr. hits 2 home runs at Dodger Stadium BASEBALL IS THE BEST!!! : r/baseball

It's been nearly two decades since Fernando Tatis hit two grand slams in one inning

List of Major League Baseball single-inning runs batted in leaders - Wikipedia

Fernando Tatis' Two Grand Slams Remain an Insane MLB Record

MLB: Five Hilariously Absurd Stats to Brighten Your Day - Page 2

Baseball Looks to Continue Best Season Since Joining MVC at League Tournament

In 1999, Fernando Tatis hit .298, 34 HRs, 107 RBIs, 104 runs, 21 stolen bases, .404 OBP, hit 2 home runs in one inningand still wasn't even in the top 28 in NL MVP voting. : r/baseball

Best baseball player born every year since 1847

Tatis' two slams in one inning, 04/23/1999

Statcast: Tatis Jr. shows off arm, 04/15/2019