The inaugural championship game of the Big3, rapper/actor Ice Cube’s new 3-on-3 basketball league, is set for Aug. 26 at T-Mobile Arena in Las Vegas.

But wait: Isn’t that the date and site for the Floyd Mayweather Jr. vs. Conor McGregor pay-per-view boxing match?

That it is, which will require some negotiating.

Ice Cube told Newsday at the Big3’s media day event Friday at Chelsea Piers in Manhattan that the two sides are “working it out.”

Ice Cube said the events could not be held in the same arena on the same day but could be held on the same day at separate arenas because the Big3 final is set for afternoon and the boxing match for nighttime.

“We’re working out a venue change,” he said. “If they get their [expletive] together, we’ll change. If they don’t, they’ll change. We own the date.”

Ice Cube said the MGM Grand is a potential alternate for his league. T-Mobile Arena is a joint venture between MGM Resorts and the Anschutz Entertainment Group.

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“Not bad at all,” he said. “But we were there [at T-Mobile], so they have to work it out. They are. We just have to get over the hump.”

McGregor is the UFC lightweight champion with zero professional boxing matches. Mayweather was a five-division boxing champion with a 49-0 record before retiring in 2015.