Career
One of Sonsona"s trainers is Nonito Donaire Senior, father and trainer of Nonito Donaire. Before fighting as a professional, he fought 150 times as an amateur. Sonsona climbed up in weight to challenge José López for the WBO super flyweight title on September 5, 2009.
He scored a knockdown in the fourth round and fought his way to a unanimous decision victory.
At the end of the bout, the judges had it a split decision. On February 27, 2010, Sonsona jumped two weight divisions, challenging undefeated Wilfredo Vázquez, Junior. for the vacant WBO super-bantamweight title.
On October 15, 2011 Sonsona finally back in action facing Carlos Jakolmo, Sonsona sent the Mexican boxer to the canvass during the 8th round and He defeated Jakolmo via Unanimous Decision. Sonsona claimed a 5th round KO victory against Dominican Republic"s Carlos “El Burito” Fulgencio in the main event Pinoy Knockout 1 at the Hoops Dome in Lapu-Lapu City, Cebu, Philippines on March 17, 2012.
Sonsona has assured himself of a slot in the undercard of Johnriel Casimero"s IBF Interim light flyweight title defense against Mexico’s Sammy Gutierrez on May 13, 2012 at the Waterfront Cebu City Hotel.