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MLB's enhanced plans for enforcement of foreign-substance rules being finalized, with June rollout pending, sources say

All Major League Baseball pitchers will be checked repeatedly and randomly for foreign substances by umpires under the plan being swiftly advanced -- and perhaps implemented within the next 10 days to two weeks.

Major League Baseball is expected to instruct its umpires to enforce a rule that has long been on the books but mostly ignored.

However, with pitcher strikeout rates at an all-time high, and batting averages at an all-time low -- and with position players increasingly enraged by what they consider to be an unfair advantage for pitchers -- change is imminent. Major League Baseball is typically slow to change, but in this case, the groundswell of concern and anger over what is perceived to be a widespread use of foreign substances is driving officials within the sport to move quickly.