Fernando Tatís Jr. - Wikipedia
Baseball's unwritten rules are evolving - The Washington Post
More than ever, baseball's unwritten rules were made to be broken, MLB
If MLB's unwritten rules were worth following, they would be written down - Beyond the Box Score
Fernando Tatis Jr. in Trouble for Breaking Baseball's Unwritten Rules
Dave Roberts no longer adheres to baseball's unwritten rules - Los Angeles Times
San Diego Padres The Baseball Codes
Trent Grisham bat flip fans flames of Dodgers-Padres rivalry - Los Angeles Times
Fernando Tatis Jr. upset unwritten rules police with his grand slam
Let the Kids Play: Latino Players, Differing Play Styles and Racial Stigma in Major League Baseball - Andrew Mitchel, Jeffrey H. Cohen, 2023
MLB All-Swag Team
Jayce Tingler admits Fernando Tatis Jr. comments weren't worded 'exactly right' - The Athletic
The Huddle: Baseball's Unwritten Rules & Roberto Clemente - Global Sport Matters