Son Heung-min apologised after his South Korean side exited the World Cup following a sobering 4-1 defeat to favourites Brazil in the last 16 in Qatar. 

The captain and talisman was powerless as Brazil scored four times in the first half on Monday, before Paik Seung-ho netted a 76th-minute consolation for the outclassed Koreans. South Korea have still never won a World Cup knockout tie outside of their home country.