Players of South Korea's FC Seoul celebrate after winning their AFC Champions League eighth-final match against China's Beijing Guoan at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1. (Xinhua/Park Jin Hee)

Players of China's Beijing Guoan react after losing to South Korea's FC Seoul during their AFC Champions League eighth-final match at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1. (Xinhua/Park Jin Hee)

Koh Myung-jin (C) of South Korea's FC Seoul celebrate after scoring a goal against China's Beijing Guoan during their AFC Champions League eighth-final match at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1. (Xinhua/Park Jin Hee)

Frederic Oumar Kanoute of China's Beijing Guoan react during the eighth-final match of the AFC Champions League against South Korea's FC Seoul at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1.(Xinhua/Park Jin Hee)

Frederic Oumar Kanoute (2nd L) of China's Beijing Guoan is given a red card during the AFC Champions League eighth-final match against South Korea's FC Seoul at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1. (Xinhua/Park Jin Hee)

Frederic Oumar Kanoute (C) of China's Beijing Guoan celebrate after scoring a goal during the eighth-final match of the AFC Champions League against South Korea's FC Seoul at the Seoul World Cup Stadium, in Seoul, South Korea, May 21, 2013. FC Seoul won 3-1.(Xinhua/Park Jin Hee)