Heung-Min Son is known as one of the happiest players in world football. The Tottenham captain always seems to have a smile on his face on the pitch, and it’s hard to imagine anything in the game causing him to be upset. However, speaking to TNT Sports, Son has admitted that one transfer Spurs made in the summer really did upset him. Heung-Min Son was upset by one player sale at TottenhamSon spoke to TNT about Harry Kane’s departure from Spurs, and he had nothing but good words to say about his former teammate. Son says that he loved playing with Kane and that he was actually really sad when t…