Roy Williams got LIT in the locker room!!!
The North Carolina coach fueled the crazy post-game celebration right after the Tar Heels beat the Zags in the NCAA Championship game ... screaming, yelling, showering people with non-alcoholic beverages.
The legendary coach even gave his guys an impromptu math test about how the tournament went from 64 teams down to 1 ... see, academics matter!
One thing though, when Roy turns to write the number "1" on the whiteboard -- looks like he drew a "T" instead ... unless it's a Roman numeral, but who does that?