Sources: UFC finalizing Cody Garbrandt-Rob Font bantamweight main event

The UFC is finalizing a bantamweight main event between former champion Cody Garbrandt and Rob Font in May, multiple sources told ESPN on Thursday.

Contracts have not been signed, but the 135-pound bout will headline UFC Fight Night on May 22 once finalized. The UFC has not announced an official venue for the event.

Garbrandt (12-3) is coming off a sensational one-punch knockout of Raphael Assuncao last summer. He was scheduled to move down in weight and challenge Deiveson Figueiredo for the UFC's flyweight championship in November, but he was forced to withdraw from the bout because of health reasons.

Figueiredo is now locked in to a title-fight rematch against Brandon Moreno in June. Those two fought to a draw in December. Garbrandt has not abandoned plans to drop to 125 pounds, but he'll focus on 135 for the time being.

Font (18-4) surged up the UFC's bantamweight rankings following a first-round knockout of Marlon Moraes in December. The Boston native is on a three-fight win streak, with victories over Moraes, Ricky Simon and Sergio Pettis.