Errol Spence thinks his fight with Crawford is bigger than Mayweather - Pacquiao

Errol Spence Jr. declared his bout with Terence Crawford to be the most meaningful 147-pound fight of the past 40 years as well as the last 10 years to begin the marketing of their undisputed welterweight matchup.

Spence (28-0, 22 KOs) is reinforcing the narrative by asserting that his super bout versus Crawford (39-0, 30 KOs) on July 29 will be the most important contest of the millennium.

“This is a legacy fight for me. This is Ray Leonard-Thomas Hearns. This is Oscar De La Hoya-Felix Trinidad,” Spence told a group of reporters.

“This is a legacy fight. Two undefeated fighters fighting for [the] undisputed [championship at 147 pounds]. This is probably the biggest fight of the last 10 to 20 years. Everyone says the Floyd Mayweather-Manny Pacquiao fight was huge, but they were a lot older. We're in our prime. This is going to be an amazing fight. Everybody knows he has knockout power, and I have knockout power. So we're going to put on an amazing show and an amazing performance.”

Similar to Spence and Crawford, Mayweather and Pacquiao waited years for their highly anticipated fight before ultimately going head-to-head in 2015 for the most lucrative bout in boxing history.

Spence and Crawford's battle is sure to be a barn burner with the furious ebb and flows that Mayweather and Pacquiao lacked, even if they won't receive anywhere close to the financial rewards Mayweather and Pacquiao got.

When Mayweather and Pacquiao squared up, the Filipino legend was 36 and Mayweather was 38.

Spence is 33 years old, whereas Crawford is 35.

Boxing's first truly unified welterweight champion of the four-belt era will be the victor of Spence vs. Crawford.

At the T-Mobile Arena in Las Vegas, Spence and Crawford will square off as the main event of a Premier Boxing Champions pay-per-view event.