Middleweights Ed Herman and Rafael Natal will square off this May when the UFC returns to Cincinnati.

Set for May 10 from the U.S. Bank Arena, three bouts have now been confirmed by the promotion for UFC Fight Night 40. The main card is scheduled to air on FOX Sports 1.

Herman (21-10) has posted a 8-6 record inside the Octagon. The former Ultimate Fighter runner-up is 4-2 with one no-contest in his last seven overall, including a recent loss to Thales Leites.

Natal (17-5-1) has won five of his nine UFC fights, including one draw. He was knocked out by Tim Kennedy in November.

Below are the fights announced to date:

Heavyweight: Soa Palelei vs. Ruan Potts

Lightweight: Justin Salas vs. Ben Wall

Middleweight: Ed Herman vs. Rafael Natal