Belfast light-flyweight Patrick Barnes lost to Shiming Zou of China in the quarter-finals of the World Amateur Boxing Championships in Chicago.
Patrick Barnes lost 22-8 to Shiming Zou of China
Shiming, the 2005 World Champion and a 2004 Olympic bronze medallist, proved too good for the Holy Family fighter, winning on a 22-8 scoreline.
However, Barnes had already clinched his place in the 2008 Olympic Games.
The 20-year-old outclassed Japan's Kenji Ohkubo on Wednesday to guarantee a Beijing berth next year.