Multliple outlets confirmed the pairing following an initial report from Laerte Viana. UFC 301 takes place on May 4 at Jeunesse Arena in Rio de Janeiro. A headliner for the event has not been announced.
A former 205-pound title challenger, Smith has lost three of his last four Octagon appearances. Most recently, the 35-year-old “Lionheart” suffered a third-round technical knockout defeat against Khalil Rountree at UFC Fight Night 233 on Dec. 9.
The 26-year-old Petrino is undefeated in 11 professional outings — including four fights under the UFC banner. The Dana White's Contender Series alum was victorious in his first bout of 2024, a three-round verdict over Tyson Pedro at UFC Fight Night 238 on March 2.