The South Korean star capped off a week that started with a whistle-stop tour of Seoul in his homeland with Ben Davies, Kevin Wimmer and Kyle Walker before jetting back to join the squad in Hong Kong and finally curling home a wonderful opening goal in a convincing victory against a Kitchee side that fought all the way.
Vincent Janssen quickly added a second, with fellow strikers Harry Kane and young Kazaiah Sterling - who almost scored with his first touch, a powerful angled header with just under 20 minutes left - adding their own names to the scoresheet in the closing moments.