Last week, I posted this article with details on MLB’s statement that they would ban any foreign substances on baseball, enforcing MLB rules against such things. Here’s another article from a couple of weeks ago by BCB’s Sara Sanchez on this topic.
Today, Monday, June 21, is the day that MLB umpires are going to begin strictly enforcing the following rules:
Official Baseball Rule 3.01 states that “no player shall intentionally discolor or damage the ball by rubbing it with soil, rosin, paraffin, licorice, sand-paper, emery-paper or other foreign substance.” Rule 6.