South Korea coach Huh Jung-moo admits he is concerned that last-16 opponents Uruguay have yet to concede a goal at the World Cup.

The Koreans could name an unchanged line-up for Saturday's match at Nelson Mandela Bay Stadium in Port Elizabeth, with Cha Du-ri set to continue his role at right-back after featuring against Nigeria.

Diego Godin is a doubt for Uruguay after missing the 1-0 win over Mexico through injury, so Mauricio Victorino is ready to fill in again if the Villarreal defender is ruled out.