Los Angeles Lakers NBA star Kobe Bryant (C) reacts while attending a sports promoting activity calling for the youngsters to take part in sports games in summer nights in Xi'an, capital of northwest China's Shaanxi Province, Aug. 5, 2013. (Xinhua/Jiao Weiping)

Los Angeles Lakers NBA star Kobe Bryant (R) is presented a piece of paper-cutting work while attending a sports promoting activity calling for the youngsters to take part in sports games in summer nights in Xi'an, capital of northwest China's Shaanxi Province, Aug. 5, 2013. (Xinhua/Jiao Weiping)

Los Angeles Lakers NBA star Kobe Bryant speaks to fans while attending a sports promoting activity calling for the youngsters to take part in sports games in summer nights in Xi'an, capital of northwest China's Shaanxi Province, Aug. 5, 2013. (Xinhua/Jiao Weiping)

Los Angeles Lakers NBA star Kobe Bryant (L, front) looks on as a boy tries to shoot during a sports promoting activity calling for the youngsters to take part in sports games in summer nights in Xi'an, capital of northwest China's Shaanxi Province, Aug. 5, 2013. (Xinhua/Jiao Weiping)

Los Angeles Lakers NBA star Kobe Bryant (front) reacts while attending a sports promoting activity calling for the youngsters to take part in sports games in summer nights in Xi'an, capital of northwest China's Shaanxi Province, Aug. 5, 2013. (Xinhua/Jiao Weiping)