And we all know that here in America, the legal principle is "guilty until proven innocent." </sarcasm>
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I must disagree. The legal principle here is....it's only illegal if you get caught. Then if you get caught, just say it's no big deal. It shouldn't be illegal in the first place. Everyone does it.
Now THAT makes sense.
Rogers wasn't "caught." He was told to clean whatever it was off his hand, and he did. You allege that since his performance from that point forward continued to be stellar, he must still have been cheating; he just moved an illegal substance from his hand to another place. You have no basis for that.
There have been pitchers caught red-handed on the mound in attempts to cheat, most famously Joe Niekro's vain attempt to flip an emery board out of his pocket, hoping the umpires would not notice it falling to the ground. There is no such similar prima facie evidence Rogers just got better at cheating once he was "caught."