MLB's foreign-substance enforcement leads to public embarrassment
M.L.B. Says It Will Punish Doctoring of Baseballs - The New York Times
MLB foreign substance crackdown may end up causing hysteria
MLB foreign substance crackdown: How the league's enforcement of rules against doctored baseballs is working
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MLB trends: How substance crackdown has impacted spin rates; Albert Pujols making difference for Dodgers
Sun lotion and curveballs: Why MLB is gripped by dubious 'foreign substances', MLB
Coming to grips: Sticky stuff ban provokes managers, players
Gerrit Cole downplays MLB's new foreign-substance policy
Commentary: Doctored baseballs aren't a big MLB scandal - Los Angeles Times
Is MLB's crackdown on substance use on balls a ticky-tacky enforcement?
Given the Karinchak 'noogie,' is it time for some MLB rule clarifications? Editorial Board Roundtable