Nonito Donaire Sr. trained fighter flyweight fighter, Joebert Alvarez who resides in Oakland, CA by way of General Santos City, Cotabato del Sur,Philippines, will face Jonathan Gonzalez on March 19th for the WBO NABO championship.

Alvarez, who last fought Juan Francisco Estrada to a closely contested decision that saw Estrada taking the nod (though disputed by many) and has been out of ring since due to the difficulty in finding a fight for him.

Gonzalez is a high level amateur who defeated McWilliams Arroyo multiple times in the amateurs as well as a three time national champion.

Alvarez trains out of Donaire Sr Boxing Gym in Oakland, CA located near Lake Merritt.