MLB Rules
🏛️Official — MLB7.5 Foreign Substances and Doctored Balls (OBR Rule 6.02(c))
Verdict
Per OBR Rule 6.02(c), a pitcher shall not apply a foreign substance of any kind to the ball, deface the ball in any manner, deliver a shine ball, spit ball, mud ball, or emery ball, or intentionally damage or roughen the surface of the ball. Umpir...
Source: Rule 6.02
Send this to your friend — argument over.
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