The South Korea international completed the full 90 minutes of his side's World Cup Qualifying win over the United Arab Emirates but missed training over the weekend due to a knock.
There were fears that Son could have been a doubt for Spurs' first game back after the international break - a home clash with Leeds United - but the 29-year-old has brushed off any injury fears.
Speaking to Korean media, via football.london, Son said: "Nothing serious. I had a knock. I wanted to join the training, but I tried to be careful (because of the knock)."
Son will therefore hope to be in contention to face Iraq in Tuesday's World Cup qualifier, with South Korea second in Group A behind Iran.
The former Bayer Leverkusen man has five goals and two assists to his name from 15 appearances in a Tottenham shirt this season. body check tags ::