Guerron Mendez (L) of China's Beijing Guoan and Kim Won-il of South Korea's Pohang Steelers fight for the ball during their AFC Champions League 2013 group G match at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)

Coach of China's Beijing Guoan Aleksandar Stanojevic reacts during the AFC Champions League 2013 group G match against South Korea's Pohang Steelers at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)

Kim Kwang-suk (C) of South Korea's Pohang Steelers fight for the ball during their AFC Champions League 2013 group G match against China's Beijing Guoan at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)

Shao Jiayi (Back) of China's Beijing Guoan and Cho Chan-ho of South Korea's Pohang Steelers fight for the ball during their AFC Champions League 2013 group G match at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)

Shao Jiayi (L) of China's Beijing Guoan and Lee Kwang-hoon of South Korea's Pohang Steelers fight for the ball during their AFC Champions League 2013 group G match at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)

Guerron Mendez (R) of China's Beijing Guoan and Kim Kwang-suk of South Korea's Pohang Steelers fight for the ball during their AFC Champions League 2013 group G match at the Pohang Steelyard Stadium, in Pohang, Gyeongsangbukdo province of South Korea, Feb. 27, 2013. The match ended in a 0-0 draw. (Xinhua/Park Jin Hee)