![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/u14ybk99wksnauwpiqf7)
Fernando Tatis Jr. homers on dad's anniversary
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://i0.wp.com/www.stlredbirds.com/wp-content/uploads/2021/01/tatis.jpg?fit=650%2C366&ssl=1)
April 23, 1999: Fernando Tatis hits two grand slams in the same inning
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://i.redd.it/xqmhz3arnq471.jpg)
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
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://ca-times.brightspotcdn.com/dims4/default/55402c3/2147483647/strip/true/crop/5369x3579+0+0/resize/1200x800!/quality/75/?url=https%3A%2F%2Fcalifornia-times-brightspot.s3.amazonaws.com%2Fb7%2F7c%2F7205463b4c95934488e89d097061%2Fpadres-dodgers-baseball-95331.jpg)
Fernando Tatis Jr. mimics dad's feat as Padres beat Dodgers - Los Angeles Times
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://i.ytimg.com/vi/Wh2pcflJdvU/sddefault.jpg)
Tatis Hits Two Slams
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://lookaside.instagram.com/seo/google_widget/crawler/?media_id=2558256678841468609)
Fernando Tatis Jr., Sr. become first father-son duo with multi-HR game at same ballpark on same day - Article - Bardown
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://external-preview.redd.it/highlight-joe-kelly-comes-up-and-in-on-fernando-tatis-jr-v0-IpbW99BCoxPvWoqmAilRy359haamhxNUtEPnfXEcjYs.jpg?format=pjpg&auto=webp&s=8b0456cee1568cc9f74d7a6b073f1fa1e9c6b6b2)
Highlight] Joe Kelly comes up and in on Fernando Tatis Jr. and it looks like a HBP, but it hit the knob of the bat. Then he strikes him out with 100
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://dodgerblue-com.exactdn.com/wp-content/uploads/2023/04/Clayton-Kershaw-1-2.jpeg?strip=all&lossy=1&resize=200%2C110&ssl=1)
This Day In Dodgers History: Fernando Tatis Hits 2 Grand Slams In One Inning Off Chan Ho Park
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://sabr.org/wp-content/uploads/2012/01/52-Tatis-Fernando-dreamstime_l_76426516.jpg)
Fernando Tatís – Society for American Baseball Research
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://upload.wikimedia.org/wikipedia/commons/thumb/6/64/Fernando_Tatis_2009_%28cropped%29.jpg/220px-Fernando_Tatis_2009_%28cropped%29.jpg)
Fernando Tatís - Wikipedia
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://staticg.sportskeeda.com/editor/2023/08/69911-16934021140124-1920.jpg)
Fernando Tatis Jr. pays homage to his father's '99 grand slam magic with custom-designed Jordan cleats
![MLB on X: 4/23/99: Fernando Tatis Sr. hits 2 grand slams at](https://nesn.com/wp-content/uploads/sites/5/2021/04/fernando-tatis.jpg)
Fernando Tatis Jr. Savagely Trolls Trevor Bauer After Yet Another Homer