American puncher Gervonta Davis will now fight Isaac Cruz in a December dust-up

• The Gervonta 'Tank' Davis vs. Rolando Romero fight has been axed.
• This is because Romero is under police investigation regarding an alleged sexual assault.

American puncher Gervonta Davis will now fight Isaac Cruz in his December dust-up at the Staples Center in Los Angeles, an official statement sent to Insider confirmed Wednesday.

The boxing superstar was originally scheduled to fight Mayweather Promotions and Premier Boxing Champions stablemate Rolando Romero.

However, the 26-year-old lightweight was removed from the event because of an ongoing police investigation into an alleged sexual assault that took place in 2019, according to a Boxing Scene report.

The CBS-owned website reported that a 24-year-old woman named Izabel Zambrano, a "longtime acquaintance" of Romero's, gave a statement last week to the Henderson Police Department in Nevada.

Romero has not been charged with a crime.

He is under investigation for sexual assault, Boxing Scene said, and so event organizers sought a replacement opponent.

Cruz will now fight Davis instead.

"God willing, I'll be world champion on December 5," Cruz said in a statement sent to Insider. "This fight is a very big motivation for me as a professional and as a personal goal.

"I'm sure after December 5 everyone in boxing will know the name Isaac 'Pitbull' Cruz.''

'Kudos to Isaac Cruz'

Davis, who is one of boxing's great knockout artists, said he'll be looking to inflict maximum damage next month. "I come in looking for the knockout and that's exactly what I'm going to do in this fight," he said.

The CEO of Mayweather Promotions, Leonard Ellerbe, called Davis - his star fighter - a "generational talent who's only getting better."

Tom Green of TGB Promotions added: "Kudos to Isaac Cruz for stepping in as a replacement opponent in a high-pressure, pay-per-view fight against one of the brightest stars in boxing in Gervonta Davis.

"Cruz presents a different, and some would argue a more difficult challenge to Tank Davis. Cruz won't back down and he'll bring the fight to Davis from the opening bell.

"We've all seen Gervonta's blend of superb boxing skills and explosive power, and we know what he's capable of.

"It will be the irresistible force versus the immovable object, which means fireworks."

The fight will be broadcast on pay-per-view on Showtime.