Padres' Fernando Tatis Jr breaks another unwritten rule with steal - Sports Illustrated

Fernando Tatis Jr. keeping fun alive in MLB - Sports Illustrated

Baseball's unwritten rules are evolving - The Washington Post

If MLB's unwritten rules were worth following, they would be written down - Beyond the Box Score

Baseball's Unwritten Rules: Where Does It Say You Can't Do That? - The New York Times

MLB players blast baseball's 'unwritten rules' following Fernando Tatis Jr.'s 3-0 grand slam

Fernando Tatis Jr.'s Grand Slam and the Death of MLB's Unwritten Rules - The Ringer

Padres Daily: Fernando Tatis Jr. outdoes himself again; Big Four delivers as forecasted; a Cruz missile - The San Diego Union-Tribune

MLB hitters swinging more in 3 0 counts

Padres Notes: Tatis Jr's Home Return Successful, Broken Bat Syndrome, Attendance Surprisingly Low & More - Sports Illustrated Inside The Padres News, Analysis and More

Rangers feel Fernando Tatis Jr. broke 'unwritten rule' by hitting grand slam

Fernando Tatis Jr: Gerrit Cole, Yankees defend Padres' star - Sports Illustrated NY Yankees News, Analysis and More

Baseball's Unwritten Rules: Where Does It Say You Can't Do That? - The New York Times