NEW YORK -- The majority owners of Ultimate Fighting Championship have agreed to buy their biggest mixed martial arts rival, Pride Fighting Championships, in a deal that will establish megafights among the outfits' titleholders and possibly attract huge pay-per-view audiences.

Company executives declined to comment on the sales price, but a person familiar with the negotiations told The Associated Press that brothers Lorenzo and Frank Fertitta will purchase the Japan-based Pride for less than $70 million. The person was not authorized to speak to reporters and spoke on condition of anonymity.

The deal was completed Tuesday and was announced during a news conference in Tokyo, where Lorenzo Fertitta has been negotiating with Nobuyuki Sakakibara, the majority owner and chief executive of Dream Stage Entertainment Inc., Pride's owner.