By Miguel Rivera

WBO super middleweight champion, Gilberto 'Zurdo' Ramirez has decided to make some big changes, as he parts ways with Héctor and Jesús Zápari - after a 15 year working relationship.

Ramirez will move forward with an exclusive promotional run under Top Rank.

Ramírez, who from the age of 12 came to work with the Zápari family, expressed his gratitude for the support over the past 15 years, but felt that it is time to renew to continue increasing his legacy.

Jesús and Zápari will continue to promote talents such as Rubén Vega and Jesús Aréchiga, who are already signed with Top Rank.

"The contract was over, but we finished well, we've remained friends, but because of work related issues things did not happen as we wanted," said Ramirez to ESPN Deportes.

"We have an idea of ??what we want for our career and I wish them success in the future, because I know there is a lot of talent [in their stable]. I feel very grateful to the Zápari family for everything we did and achieved together."

Hector Zápari, the career trainer of the boxer, expressed his best wishes for Ramirez.

"For me, it's like a brother has left home, it is something that hurts, but we wish him well, we are grateful to have had the opportunity to make him the first super middleweight champion in Mexico, to help him do five successful defenses," Hector Zapari said.

"It's time to move forward. Just like him, we will continue working on the path of success. There is a good group of fighters like Rubén Vega, Jesús Aréchiga and others... we will make noise very soon."

Ramirez, a world champion since April 2016, recently announced that he intended to invade 175 pounds by 2019, after having made five defenses at 168 pounds.