Tottenham Hotspur beat Austrian side Wolfsberger AC in the first leg of the Europa Leage round of 32.
Son scored the opener in the 13th minute with a header from Gareth Bale's cross from the right flank, helping his team win 4-1.
Due to COVID-19 restrictions, the match was played at the Puskas Arena in Budapest, named after former Hungarian national team captain, Ferenc Puskas.
His name also graces the Puskas Award, the annual FIFA trophy presented to the player who scored the best goal of the year.
Son won the award last year, and mentioned after the game that being at the stadium was very special because he won the award.
With 18 goals and 13 assists, he now has 31 attacking points this season, breaking his previous record.
Last season, Son had 30 attacking points, with 18 goals and 12 assists.
The second leg is scheduled for next Thursday at Tottenham Hotspur Stadium in London.
Seo Eunkyung, Arirang News