Welterweight champs Errol Spence Jr., Shawn Porter to fight Sept. 28 in LA

FILE – (R-L) Errol Spence Jr fights Mikey Garcia in an IBF World Welterweight Championship bout at AT&T Stadium on March 16, 2019 in Arlington, Texas. Tom Pennington/Getty Images/AFP

LAS VEGAS — Welterweight champions Errol Spence Jr. and Shawn Porter will meet in a unification bout Sept. 28 in Los Angeles.

Spence and Porter announced the date and location of their showdown Saturday.

Spence (25-0, 21 KOs) holds the IBF 147-pound title, while Porter (30-2-1, 17 KOs) is the WBC champion. They agreed to a title unification bout in April, but recently chose Staples Center as the site.

FILE -Shawn Porter punches Adrian Granados during their WBC welterweight title eliminator at the Barclays Center on November 4, 2017 in the Brooklyn Borough of New York City. Al Bello/Getty Images/AFP

Spence is an emerging pound-for-pound superstar who has held his belt since May 2017. He trounced the undersized Mikey Garcia in his last bout in March.

Porter will attempt his second defense of the belt he won by beating Danny Garcia last year. Porter has won four straight fights since losing a decision to Keith Thurman in 2016.