MLB's New Rule For Foreign Substance.
Update: 2021-06-15
Description
Doctoring the ball has been a thing since the late 1800s. But it went from spit, to pine tar, to now a substance that is more effective than steroids. Basically what play call super glue on the ball. And with offense in a downward trend, they are putting foreign substance watch into effect mid year. All of it explained.
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