The Tottenham man also had to play peacemaker in the clash, however, when he split up an argument between two opposition players.
Having won the Premier League's Golden Boot last season, the forward was full of confidence and that was shown when he bent his free-kick into the top corner from 20 yards.
Wolves' Hwang Hee-chan also scored a fantastic goal in the win at the Daejeon World Cup Stadium.
However, as well as captaining his own country, Son was forced to step in when Chilean defenders Paulo Diaz and Benjamin Kuscevic clashed.
After some cross words were exchanged, the Chilean duo barged into each other, before the Spurs forward intervened.
As tempers were appearing to rise, he immediately pushed Diaz away and held Kuscevic back. What a man.
If only he were on the pitch when Kieron Dyer and Lee Bowyer came to blows when playing for Newcastle back in 2005!
South Korea are preparing to take part at the 2022 World Cup in Qatar where they are in Group H.
The Asian nation will face Cristiano Ronaldo's Portugal, Uruguay, and Ghana.
At the 2018 tournament, Son's nation exited at the group stage but registered a shock 2-0 win over reigning world champions Germany.
Son and Young-Gwon Kim both notched dramatically in added time but the aim for Qatar will be to reach the knockout stage for the first time since 2010.