Multiple sources close to the matchup confirmed the news to MMA Fighting on Wednesday.
For Alves this will be an opportunity to add another win to his already impressive resume while looking to win a championship with BKFC after signing with the bare-knuckle promotion following the end of his run with the UFC.
Alves made a successful BKFC debut with a split decision win over Julian Lane this past September after he was a high profile addition to the promotion. Now in his second fight, the Brazilian will look to become a champion.
As for Diaz, he made quite the splash in just his second appearance in BKFC this past November when he recorded a stunning three-second knockout over Donelei Benedetto. It was the fastest knockout in BKFC history and now Diaz will be rewarded with a title fight against Alves on May 21.
BKFC hasn’t officially announced the title fight between Alves and Diaz, although the promotion previously confirmed the May 21 card would take place at the Hard Rock Stadium in Miami.
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