Despite multiple sightings, some people believe "Bigfoot" is still a myth.

Brazilian roadblock Antonio Silva turned the world of mixed martial arts on its head by stopping Fedor Emelianenko in the quarterfinals of the Strikeforce Heavyweight Grand Prix Tournament back in February.

"The Last Emperor," an early favorite to win it all despite a submission loss to fellow entrant Fabricio Werdum in June 2010, was thoroughly thrashed by his much larger foe, who saw his stock rise dramatically in light of his upset win over the former PRIDE FC champion.

A win that also pushed current Strikeforce Heavyweight Champion Alistair Overeem into the new role of tournament favorite.

And while "Demolition Man" bounced Werdum from the grand prix back on June 18, his uninspired performance left many fans and pundits wondering what would happen in his semifinal fight against Silva.

"Bigfoot" has the answer:

"I respect Overeem, but I’m going to train hard. I’m going to train for three rounds, hard. I know I can knock out this guy. I can fight stand-up, fight on the ground, believe me.  I told you before, if I beat Fedor, I would win this tournament. I promised my fans, I promised my family, and I’m going to win this tournament."

Prior to sending Emelianenko back behind the iron curtain, Silva survived a first round scare to come back and crush Mike Kyle at Strikeforce: "Henderson vs Babalu" last December.

The former EliteXC Heavyweight Champion boasts an outstanding record of 16-2 with his last loss coming at the hands of the same man to famously end Fedor's run as the best in the world. He's clearly at the top of his game.

But will it be enough to topple "The Reem?"

Who's your pick to win it all? And how has your opinion changed -- if at all -- since Strikeforce: "Overeem vs. Werdum?"

Sound off!