The forward waved goodbye to his Spurs team-mates in Hong Kong to join up with South Korea ahead of this evening's friendly against Iraq in the UAE and next Tuesday's World Cup qualifier in Qatar.
Sonny enjoyed an outstanding second season at the Club. He pushed past the 20-goal barrier in our penultimate game at Leicester City and finished with 21 goals in all competitions. That helped create Club history as it's the first time we've had three players score 20-plus goals in all competitions in the same season - Sonny joining Dele Alli (22) and Harry Kane (35).
Sonny also created his own history by becoming the first Asian player to win the Premier League's EA Player of the Month award. He doubled up as well, winning in September and April.
Throughout it all, Sonny has shone the light on his team-mates and he did so again one last time. "I’m really, really thankful, this is my honest thing - without them I’m nothing.
"We play football with 18 players or more than 18 players (in the squad) and I need every player to help me. In every training session, they help me and help each other and this is very important.
"My team-mates are very important for me and for other players as well. I mean exactly what I say – I’m really thankful to my team-mates and to Tottenham.
"I’m really proud of my team-mates, for Tottenham and for me as well."
Sonny's goals helped us to second place in the Premier League and a raft of Club bests in a 2016-17 season that will live long in the memory.
But the players refuse to rest on their laurels, underlined by Sonny. "We have many, many things we have to learn. We’ve had some great games and we’ve had some not so good performances for the team or for myself as well – we have to learn from this.
"We are still a young team and we are hungry. I can see in every training session everyone is hungry and this is very important for our future."