Zou taking dead aim at world title

Sparring with Pacquiao to prepare for Nov 5 bout

Like a gunslinger bracing for one last showdown, Zou Shiming knows his time is running out. It's high noon, and he's almost out of bullets.

On Nov 5 in Las Vegas, China's double Olympic gold medalist will roll the dice on his second crack at the world flyweight championship, on the undercard of Manny Pacquiao's WBO welterweight title clash with Jessie Vargas.