If he ever believed the odds to be a true reflection of what would take place, Shawn Porter would have never chosen to become a pro boxer.

The squat welterweight from Akron, Ohio managed to successfully transition from the football gridiron to the boxing ring, carving out a stellar amateur career along with two separate title reigns in the pro ranks. A who’s who of top welterweights has graced his résumé, which will soon include Errol Spence (25-0, 21KOs) whom he faces in a title unification clash Saturday evening at Staples Center in Los Angeles, Calif.

Spence is listed as high as a 10-1 betting favorite for their Fox Sports Pay-Per-View headliner.

“I’m blue collar, baby. We have to work for everything we get,” Porter (30-2-1, 17KOs) insisted when asked about the lopsided odds during a recent edition of Inside PBC (Premier Boxing Champions) Boxing. “I’m not surprised that I’m the underdog.

“When it comes to this, the betting odds are looking at it statistically than what can really happen.”

The majority of industry insiders are predicting a win for the unbeaten southpaw from Desoto, Texas, who enters on the heels of a 12-round shutout of previously unbeaten Mikey Garcia this past March, also on PPV. Porter’s most recent fight came one week prior, barely edging out Yordenis Ugas in a mandatory title defense.

The lopsided viewpoint can be attributed to a number of factors, their most recent performances among such influences. It also speaks to their general fighting styles and manner in which they tend to win.

Spence has breezed through the majority of his competition ever since turning pro in late 2012 following his run on the U.S. Olympic boxing team which competed in London. Meanwhile, most of Porter’s biggest wins and notable fights—including the ones he’s won comfortably—tend to be grueling affairs.

“A lot of guys have allowed Errol Spence to get his way,” Porter says in explaining the trend. “Errol is relying on size and his power he’s held through 25 fighters. I’m willing to go out of my way to make sure that’s not the case. He says I’m a dirty fighter. Everything that he’s saying, I’m going to go in there and take away from him.

“It’s OK, It’s only a matter of time. Anything he’s written off, he’s about to find out. You haven’t seen me offer anything more than being rugged.”

Jake Donovan is a senior writer for BoxingScene.com. Twitter: @JakeNDaBox