Ireland\'s Paddy Barnes has said he has just one goal in Friday\'s light flyweight Olympic semi-final against China\'s reigning champion Zou Shiming -- to score a single point. The Irishman still remembers the humiliation of losing 15-0 to the 31-year-old world and Olympic champion in the semi-finals at Beijing in 2008. Having guaranteed himself at least a bronze after Wednesday\'s 23-18 quarter-final win over India\'s Devendro Laishram, the 25-year-old says landing one punch on Zou is his goal when the pair meet for a place in Sunday\'s final. \"Bronze medals are for losers. I am fighting a guy in the next fight who beat me 15-0 in Beijing, so my plan in the next fight is to just score a point,\" said Belfast-born Barnes who brought home a bronze from Beijing. \"If I can just get that one point, I can go home a happy man. \"He\'s world champion, Olympic champion and he\'s world-class.\" China\'s boxing icon Zou, the Asian champion, booked his place in Friday\'s semi-final with a solid 13-10 victory over Kazakhstan\'s Birzhan Zhakypov on Wednesday having hammered Cuba\'s Yosbany Veita 26-4 in the Round of 16.