One wild record you probably didn't know for all 30 MLB teams - ESPN
This Day In Dodgers History: Fernando Tatis Hits 2 Grand Slams In One Inning Off Chan Ho Park
Fernando Tatis Jr. homers twice on SAME DAY his DAD hit TWO grand slams at Dodger Stadium!
Fernando Tatis Two Grand Slams in an Inning
Fernando Tatis has a grand slam 'cycle
This day in sports: Fernando Tatis becomes first player to hit two grand slams in an inning - Los Angeles Times
Are the specifications of MLB official baseballs that are produced by Rawlings for a given season (or production run) archived and/or published? - Quora
MLB offseason tracker: Blue Jays add Chad Green to bullpen MLB - Bally Sports
April 23, 1999: Fernando Tatis hits two grand slams in one inning – Society for American Baseball Research
An electrifying moment': The night Fernando Tatis hit two grand slams in the same inning
Fernando Tatis' Two Grand Slams Remain an Insane MLB Record
College Baseball Player Hits Two Grand Slams in Same Inning
MLB offseason tracker: Blue Jays add Chad Green to bullpen MLB - Bally Sports
This Day in History: Fernando Tatis Sr. Hits Two Grand Slams in Same Inning! - Fastball