The South Korean has a fight on his hands to break into the first-team this season.
Son Heung Min celebrates scoring for Tottenham Hotspur
The Lilywhites lost both fixtures but there were plenty of positives to take back to London, with a host of academy players impressing.
“We’ve had two great friendly matches and really enjoyed our time together,” said Son. “We lost the games but we were really unlucky against Atletico. We created chances and played well.
Tottenham's Heung Min Son scores
“They are one of the best teams in the world at the moment, Champions League finalists, great opponents and we’re a little disappointed to lose.
“You get days like this in football. We played well and we’re a strong team – everyone can see that.”
Mauricio Pochettino was without the bulk of his first team for the pre-season trip to Australia so opted for a mix of fringe players and academy talents in his lineups.
Given the makeshift nature of the team in both fixtures, Pochettino will be happy with how they performed against two very capable sides who were much closer to full-strength.
Tottenham's Marcus Edwards in action against Alex Sandro of Juventus
Heung-Min Son was among several senior figures who did little to improve their prospects however, and much more is needed from the 24-year old if he is to become a key figure at White Hart Lane.
The South Korean started his Spurs career on fire but lost momentum following an injury last year and has never really recovered since.
While frustrating at times, he is an undeniable talent and he knows where the goal is and Spurs fans will hope he remembers its location in time for the new campaign.