Question: The professional boxer, who held the WBO ligh-middleweight from 2015-2016, has a younger brother who is also a professional boxer; what is this brother's name?
Sentence (from "Drian Francisco"): Drian Francisco (born November 10, 1982 in Sablayan, Occidental Mindoro, Philippines), nicknamed Gintong Kamao (Golden Fist), is a Filipino professional boxer.
Relevant evidence: No