Nonito Donaire, left, takes a punch from Jessie Magdaleno during their fight in November in Las Vegas/Getty Images photo by Christian Petersen

Nonito Donaire, who has won major titles in four weight classes and an interim title in a fifth, this week signed a promotional contract with Richard Schaefer’s Ringstar Sports.

“Exploring what was out there in the new landscape of boxing was unnerving and exciting at the same time,” Donaire said. “I have known Richard for many years and have always respected what he has been able to do for the fighters he promotes. At this point in my career, I want the biggest fights possible and Richard’s track record to deliver them speaks for itself.”

Donaire, 34, most recently lost his super bantamweight world title to Jessie Magdaleno in November in Las Vegas.

“Nonito is one of the modern day legends of our sport,” Schaefer said. “One of these rare fighters that always delivers and always knows how to entertain. I am convinced that he will again become one of the pound-for-pound best fighters in the world. No doubt about it.”

Donaire is 37-4 with 24 knockouts.