China's Zou Shiming and Zhang Xiaoping have given the host country two boxing gold medals on the final day of the Beijing Olympics. Zou wept openly atop the medal podium after fulfilling his vow to become China's champion. The final step was easier than he imagined: Mongolia's Serdamba Purevdorj couldn't keep fighting early in the second round of their light flyweight bout because of a shoulder injury. Meanwhile, Zhang nimbly slipped past several better-pedigreed opponents to capture the light heavyweight gold. After knocking off two medal favorites in the early rounds, he beat Kenny Egan of Ireland 11-7 in the final. Italian super heavyweight Roberto Cammarelle ended China's hopes for a third gold medal by flattening Zhang Zhilei in the final bout.