What we learned from Week 1 of MLB's sticky-stuff crackdown - ESPN
Get a grip: Pitchers unsure on eve of sticky stuff crackdown
MLB getting tough on pitchers using sticky stuff
MLB's Sticky Substance Ban Belies Hidden Ball Trick
MLB pitchers ponder expectations for them as new substance rule takes effect
All your questions about MLB pitchers, Spider Tack and other foreign substances, answered - The Athletic
MLB asks umpires for heightened sticky substance checks
MLB commissioner suspects many pitchers are using banned sticky stuff
Tigers pitcher Casey Mize calls out umpire for making him change glove