MEDELLIN, COLOMBIA - AUGUST 04: Juan Iturbe (R) of Argentina duels for the ball with Kim Ju Song of Korea DPR during the FIFA U-20 World Cup Colombia 2011 group F match between Argentina and Korea DPR at the Atanasio Girardot stadium on August 4, 2011 in Medellin, Colombia. (Photo by Jasper Juinen - FIFA/FIFA via Getty Images)