How much does former UFC heavyweight champ Andrei Arlovski have left?

Andrei Arlovski doesn't remember the last time he's been this big of an underdog.

As of Friday night, Antonio "Bigfoot" Silva is more than a 4-to-1 favorite over the former UFC heavyweight champion in their UFC Fight Night on Fight Pass main event Saturday in Brasilia (8 p.m.).

To find the last time Arlovski was an underdog at all, you have to go back to 2009 when "The Pitbull" was a 4-to-1 'dog against Fedor Emelianenko at Affliction 2. Arlovski was even a small favorite over Brendan Schaub in his UFC return back in June.

"I think I'm going to put some money on myself," Arlovski joked.

Would that be a wise choice? Arlovski wouldn’t be a safe bet at +360. Not at all. The Belarus native has already lost to "Bigfoot" once, back in 2010 for Strikeforce. He didn’t look good in that fight and he seemed tentative in against Schaub at UFC 174, despite winning a split decision.

There isn't a whole lot inspiring faith in Arlovski and we haven’t even begun to talk about the fight being in Silva's home city.

"I imagine the whole crowd will be against me," Arlovski said.

Jeez. It makes you wonder why Arlovski (22-10, 1 NC) is in this fight at all. There's no arguing that, at age 35, his best days are behind him. The fact that he was even brought back into the UFC in the spring was a surprise and really only explained by UFC president Dana White's quote that he "likes" Arlovski.

A lackluster fight against Brendan Schaub (left) didn't inspire much confidence in Arlovski.

But really, this is the heavyweight division. You really can't count anyone out. Despite looking a step slow against Schaub, Arlovski still has sharp boxing. He can still knock people out and boy does "Bigfoot" have a large target to put out there for him.

You also have to factor in Silva, ranked No. 4 among heavyweight contenders, not having fought since December and being off testosterone replacement therapy (TRT). "Bigfoot" still looked strong weighing in at 264 pounds Friday, but the mental aspect has to be considered. Will he be as confident off the meds that his manager Alex Davis has insisted he needs?

Arlovski also didn’t think the bout with Schaub was that bad after watching it multiple times on video. Schaub did end up with some gross swelling on his cheek afterward. Arlovski is annoyed that Schaub continues to say he was robbed by the judges.

"Look at his face," Arlovski said. "He looks like he was hit by a train and he's still b*tching about he won. I controlled the fight. … He was supposed to walk through me. He didn’t do that."

Antonio Silva (left) will be the much bigger man Saturday night against Andrei Arlovski.

Not really. Arlovski was a slight favorite in that fight. But he's embracing the whole underdog thing, because there's "less pressure." He won't even discuss his goals during this second run in the UFC, though he's ranked No. 14 among heavyweight contenders. That's admirable, we suppose. Maybe even Arlovski himself is wondering how long he can keep this up against elite fighters.

"I'll beat 'Bigfoot' and take it one step at a time," Arlovski said. "We're going to talk after."

We'll never find out what would have happened if Arlovski would have stayed in the UFC during the latter part of his prime years. People forget that he wasn't released in 2008, that he left due to a contract dispute.

In actuality, Arlovski had won three in a row, including a victory over current No. 1 contender Fabricio Werdum. He then went on to knock out Ben Rothwell in Affliction and Roy Nelson in Elite XC. Both of those guys are currently ranked in the UFC top 10, too.

Starting with the Emelianenko fight in 2010, Arlovski lost four straight. It was the beginning of his decline. It took a stint with World Series of Fighting to build him up again and here he is -- back where it all started.

Arlovski has some impressive scalps in his collection. He wishes he had some more. Arlovski said he would love to fight Emelianenko again. He was actually winning that fight against the legendary heavyweight before throwing an ill-advised knee and getting knocked out with a vicious right hand.

Arlovski probably won't be able to right that wrong in his mind. He'll have to settle for a bout with someone else who has already defeated him: "Bigfoot." Even if he's a pretty big underdog.

"For me, I want revenge," Arlovski said. "Everybody who beat me, I want a rematch."

How much longer will he be able to keep that list from really piling up? We'll find out Saturday night.