The Colombian midfielder made a derogatory gesture with his eyes toward South Korean players in the second half of Friday night’s game at Suwon World Cup Stadium, south of Seoul.
“I didn’t mean to disrespect anyone, a country or a race, but if anyone felt offended, or interpreted it in that way, I am sorry,” Cardona said.
Cardona’s actions were condemned by the Korean media and captain Ki Sung-yeung.
“The Colombians were really physical, which can happen in football,” said Ki, who plays for Swansea City in the Premier League. “Racist behaviour is unacceptable, however.”