I hosted a Tito seminar and Chuck Liddell (who was there, and at time friends with Ortiz) so the truth must be in the middle of those two accouts. Chuck said Tito swung on Lee, Lee slipped and countered with one punch dropping Tito to hands and knees, then began kicking his head like a soccer ball. Matt Hughes tells similar story in his book. Tito's version, iirc was Lee sucker punched him and he slipped and feel only cuz he was wearing dress shoes, not from KO. Lee also called Tito out (thinly veiled) after his UFC victory, as Tito was in the crowd (Lee being 20 lbs lighter in a different weight class), but no fight materialized.
Interesting note, Chuck went through the rioting crowd around the fight and knocked out like 5-6 guys, all one punch, resulting in a few broken jaws and noses (guys went to hospital). Chuck is a street fighter, don't doub that
