Myles Garrett told NFL officials Steelers QB Mason Rudolph hurled a racial slur at him before the infamous helmet attack ... though Rudolph is calling B.S.
As we previously reported, the Cleveland Browns star met with NFL officials to appeal the length of his suspension from the Nov. 14th incident.
During the meeting, Garrett told his side of the story ... and claimed it was a racial slur from Rudolph that got him so pissed off, he ripped off the QB's helmet and attacked him with it, according to ESPN's Adam Schefter.
But Rudolph is VEHEMENTLY denying the claim -- his lawyer has already issued a statement calling the allegation a "flat out lie.