In a video uploaded on Twitter by Joachim Bergstrom, Swedish ambassador to North Korea, players were seen getting mixed up in midfield in what appears to be a testy moment. Son, the South Korean captain, got himself in among North Korean players to help separate the sides.

"The opponents were pretty physical, and we exchanged some terse words," Son told reporters at Incheon International Airport, west of Seoul. "It might have been their strategy. They played it rough, and they took exception to our own physical play."

Son said the physical nature of the match took South Korea off their game.

"Rather than focusing on the match, we started worrying about trying not to get hurt," he said. "It means a lot to have come out unscathed from a match like this."

It was the first competitive match between the two men's teams in Pyongyang, and it was held in the most unusual of circumstances.

The match was held without any spectators or foreign journalists. Son said he and the rest of the team were holed up in their hotel rooms with virtually no outside contact, having had their electronic devices banned before entering North Korea via Beijing.

"I think North Korea acted the way they did because they considered us a strong team," Son said. "We tried to focus on the match and not get distracted by outside factors."

Son added having to stay at the hotel was a blessing in disguise, because he could catch up on his sleep and recharge before the match.

"Not all road trips will be easy, and the whole team and our support staff went through a lot this time," Son said. "It's too bad we didn't get the three points but hopefully we'll be able to play better at home." (Yonhap)