To make the new contract worth it, both Son and Tottenham choose to gamble by participating in the Asian Games - and it turned out to be a success. Son is now expected to return to action for Tottenham once the global break is over in two weeks' time.
The victory for Son and his teammates added to the Korean medal tally, bringing it to 49 golds at the games, the third highest total for this edition of the tournament, after Japan and table-topping China.
"I still believe that we could have gotten a gold medal if we had enough practice time", Park, the WNBA star, said through an interpreter. And when I see the people, the way they support me, I want to give something back.
The quest for glory was arduous as Japan's under-23 side, who had kept four clean sheets on their way to the final, held firm for 90 minutes, even scaring South Korea with solid efforts from Kota Watanabe and Yuto Iwasaki.
Hwang Hee-chan doubled South Korea's lead eight minutes later with a towering header, and a relieved Son walked away from the celebratory pile of his teammates to calmly embrace his manager Kim Hak-bum.
Japan then fought back with Koji Miyoshi, who penetrated into penalty box and fired a left-footed shot from close range in the 28th that stung the palms of Jo Hyeon-woo.
Son was part of the South Korea team that won against Japan in the Asian Games football final on Saturday.More news: Watch Ariana Grande Perform at Aretha Franklin’s Funeral
On September 1, the South Korean soccer team won the final match after scoring 2-1 against Japan at the '2018 Asian Games'.
"Normally that's not an easy decision".
Lee had earlier helped Team Korea win the team pursuit gold medal along with Na Ah-reum, the only South Korean at this year's Asiad to win three gold medals. We worked so hard.
The same thing happened in the 2014 tournament, though Son, playing for Bayer Leverkusen at the time, was not released by his club.
The 26-year-old will now not have to worry about carrying out the two-year mandatory military service for South Korea.
"At least 80 percent of the credit for that goal goes to the pass (from Watanabe), the only work I did was at the very end", Ueda said.