ONE MORE FOR THE ROAD
But, it's NOT the undefeated fighter from Dagestan who is the greatest MMA fighter to ever step in a cage, according to 38-year-old former UFC champ Benson Henderson, who tells TMZ Sports Penn is the G.O.A.T.!
"That's easy, hands down BJ. Not even close. You don't even gotta say his full name, just one word. BJ, and you know who it is. The greatest lightweight all-time, without a doubt, hands down BJ Penn."
Of course, BJ and Khabib -- both now retired -- had very different careers.