Zou Shiming is at a crossroads.

China's double Olympic gold medalist from Zunyi, Guizhou province, pretty much faces a win-or-retire scenario on Saturday when he returns to the ring for the first time in 10 months to fight unbeaten Natan Santana Coutinho of Brazil in a 12-rounder for the WBO International flyweight crown.

Their fight is the headliner of a nine-bout card at the Oriental Sports Center in Shanghai, promoted by Top Rank.