Chinese boxer Can Xu defended his World Boxing Association (WBA) featherweight world title on Sunday night, defeating Japan's Shun Kubo with a six-round technical knockout in his hometown of Fuzhou in East China's Jiangxi Province.

Xu, who turned professional in 2013, became China's first WBA champion after stunning Puerto Rico's Jesus ­Rojas by unanimous decision in Houston, ­Texas in January. His current record now stands at 17 wins and two loss, with three KOs.

In the January fight, Xu was the heavy underdog and few expected him to win his first world title bout, but on Sunday victory seemed only a matter of time against the former WBA super-bantamweight titleholder Kubo. Starting in Round 1 Xu displayed superior boxing skills, landing body and head blows seemingly at will. Kubo was knocked down in Round 5.