just four teams
San Diego Padres team ownership history – Society for American Baseball Research
Is the MLB Sticky-Stuff Ban Actually Making a Difference? - The Ringer
Hector Santiago is first player suspended under MLB's foreign substance crackdown - The Washington Post
THE BATFLIP
Is the MLB Sticky-Stuff Ban Actually Making a Difference? - The Ringer
Major League Baseball has a sticky stuff enforcement problem
MLB threatens pitchers with 10-game bans for altering balls
Glossary of baseball terms - Wikipedia
The sticky stuff rundown: What you need to know about MLB's latest controversy