Former world boxing champion Evander Holyfield of the U.S. poses for the media during the official weighing in in the town of Baden west of Zurich December 19, 2008. Challenger Holyfield will fight against Russia's WBA heavy weight boxing world champion Nikolai Valuyev in Zurich's Hallenstadion on December 20, 2008.(Xinhua/Reuters Photo) Photo Gallery>>>