By Miguel Angel Cebreros, notifight.com

Undefeated world flyweight champion of the World Boxing Council (WBC), Nicaraguan Roman "Chocolatito" Gonzalez (41-0, 35 KOs), is convinced that in a rematch with WBA and WBO champion Juan Francisco "El Gallo" Estrada (30-2, 22 KOs) of Mexico - he would win by knockout.

Gonzalez won an impressive twelve round decision over Estrada on November 17, 2012 at the Sports Arena in Los Angeles, California - but says he had issues with that training camp and that was the only reason Estrada was able to last the distance.

"I know the fight with Gallo was hard, close, he's a very good fighter. I respect him a lot, but he has to learn in life to be a little more humble. The truth is that right now it is world champion. I've seen that he's grown and because of that I want to send a special greeting to him and his family and God bless him with much care. And day I get to face him I'll very prepared because I'm going to show I am the best," Gonzalez told radio program A Los Golpes.

"I'll knock him out [in the rematch] because at that time I first fought with him I did not prepare as much as I should have prepared, but today I have a super good team and I will knock him out. I have a lot of experience to do my job well."