MEXICO CITY (AP) -- A fight promoter says Mexican featherweight boxer Oscar "Fantasma" Gonzalez has died after being knocked out in the 10th round of a match over the weekend.

Canelo Promotions says in a statement that Gonzalez died Monday after suffering "a severe brain injury and brain stem damage" two days earlier. The 23-year-old fighter lost consciousness after being knocked out in a bout in Mexico City and was taken to a hospital.

He was fighting fellow Mexican Jesus Galicia for the World Boxing Council's Latino Silver championship.

It was the second boxing fatality in Mexico in three months. Francisco "Frankie" Leal died in November several days after being knocked out by Raul Hirales in a fight at the Mexican Pacific resort of Los Cabos.

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