Terence Crawford and John Molina face off at the CenturyLink Center, Omaha.

One of the most important fights of 2019 takes place on Saturday night at the Staples Center in Los Angeles. IBF Welterweight Champion Errol Spence Jr. faces WBC Welterweight Champion Shawn Porter in a potentially epic 147-pound unification bout. Spence is a massive favorite, and it's with good reaso