Andy Ruiz Jr will face Chris Arreola on April 24 in the first fight since his world title defeat to Anthony Joshua in 2019.
The Mexican-American produced a stunning display to claim Joshua's world titles in their first fight, only to lose six months later in the rematch.
He is now looking to get back to elite level to challenge the likes of Joshua and Tyson Fury. The first step is an exciting bout against 39-year-old Arreola.
Both fighters are coming off the back of losses, as Arreola was beaten by Polish contender Adam Kownacki last time out.
Speaking about the fight before it was announced, Arreola revealed he was determined to make it happen.
He told Sky Sports: "That's the only fight [for me] that's very enticing, not only to myself, also for the fans. I think the fans will love a fight between two Mexican heavyweights that are going at it.
"We're both Californians, we're both in the rankings and we're both of Mexican heritage.
"We all know what Mexican fighters bring to the table. They bring non-stop excitement. We come forward and we just love to fight."
The pair will bring plenty of knockout power to the bout. Ruiz's record currently stands at 33-2 (22 KOs), while Arreola's is 38-6-1 (33 KOs).
Ruiz has been working with renowned trainer Eddy Reynoso in an attempt to get his career back on track. Reynoso also trains household names such as Saul 'Canelo' Alvarez and Ryan Garcia, so there's plenty of hope that Ruiz can get back to his best.
Ruiz's stunning victory over Joshua in Madison Square Garden, New York remains one of the biggest upsets in recent history.
But the 31-year-old came in over a stone heavier for the rematch and was largely kept at bay by the Watford man.