Fernando Tatis Jr. is growing the game and the unwritten rules are

What Are MLB's 'Unwritten Rules?' - Sports Illustrated

Is anything more stupid than baseball's unwritten rules? Ask Fernando Tatis Jr, MLB

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

Fernando Tatis Jr. grand slam violated unwritten rules, irked his manager - The Washington Post

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

How Fernando Tatis Jr. Has Sailed Past Mike Trout to Become the Face of MLB, News, Scores, Highlights, Stats, and Rumors

The bright spot in Fernando Tatís Jr.'s unwritten rules flap? It will make him an even bigger star

How Fernando Tatis Jr. Has Sailed Past Mike Trout to Become the Face of MLB, News, Scores, Highlights, Stats, and Rumors

Full Count: A pox on baseball's ridiculous unwritten rules