Major League Baseball has a sticky stuff enforcement problem
Sources -- MLB finalizing memo on rule against use of foreign substances by pitchers - ESPN
Castellanos hits 2 homers again, powers Phillies past Braves 3-1 and into 2nd straight NLCS
Umps check under Jacob deGrom's belt for sticky substance under new MLB rule
MLB officially announces new rules, punishments for pitchers caught using foreign substances – KNBR
Alex Torres wears MLB's padded pitcher's cap
MLB foreign substance: Ex-pitcher Mike Dunne bristles at checks
Looking back at Bowie's Brandon Workman – Bowie News
As MLB nears crackdown on foreign substances, pitchers ask for fair enforcement - The Washington Post
MLB starting pitchers are going extinct. Can rule changes fix that?
MLB pitchers ponder expectations for them as new substance rule takes effect
MLB sticky stuff: Pitcher checks, enforcements change in 2022 - Sports Illustrated
VIDEO: Pitchers Ready to Disrobe in Protest of MLB's New Foreign Substances Rules
Grueling season left Dodgers too beat to reach World Series - Los Angeles Times