Dan Henderson, underdog once more, looks to score another upset at Vitor Belfort's expense

He was a massive underdog when he knocked out Fedor Emelianenko. He was an underdog when he beat Mauricio Rua at UFC 139, as well as in their rematch at UFC Fight Night 38. He was even an underdog against Tim Boetsch, a fight that ended with a 28-second knockout.

So perhaps it's no surprise that Dan Henderson will once again play the role of unlikely hero this Saturday (Nov. 7, 2015) in hostile territory when he takes on his long-time rival Vitor Belfort in the UFC Fight Night 77 main event.

It's a role he has appeared in no fewer than 10 consecutive times, according to Best Fight Odds (and first observed by MMAjunkie.com).

Henderson (31-13 MMA, 8-7 UFC) is between +255 and +300 in his trilogy rematch against Vitor Belfort (24-11 MMA, 13-7 UFC), who for his part ranges from -375 to -335. With or without TRT, Belfort is still easily a 3:1 favorite.

That may be due in no small part to the fact Belfort flattened "Hendo" in their last fight, with an uppercut that would have stopped a rhino and a head kick knockout just 1:17 into the very first round. That bout was also in Brazilian territory.

But, fight fans are fully aware that this trilogy has had its share of success for Henderson as well, who dominated "The Phenom" back at Pride 32 in 2006.

So, why the huge betting odds gap?

Well, it may have something to do with Henderson's age, 45, which is seven more years older than his opponent. Nonetheless, the UFC 17 winner plans to finish out his contract, shrugging off suggestions of retirement.

It may also have to do with the fact "Hendo" has been knocked out twice in recent years and is currently on a dreadful 2-5 skid in UFC.

However, when you consider the competition, things don't look as bad as they seem. Henderson lost split decisions to Lyoto Machida and Rashad Evans, was torn apart by UFC Light Heavyweight champion Daniel Cormier, suffered a flash knockout to heavy hitter Gegard Mousasi and was downed by Belfort via the aforementioned head kick.

Despite the setbacks, the grizzled veteran doesn't seem to have lost any power in his right hand (just ask Tim Boetsch). And given the dreadful performance of Belfort in his last outing, perhaps a 3:1 underdog is a bit much.

What do you think: Is Dan still "Dangerous" or will Belfort put this mule to pasture?