"The guys are so fired-up for this match, and I actually have to calm them down," Son said at the pre-match press conference in Guadalajara.

"I hope our hard work will bear fruit, and I think we absolutely deserve it. The vibe is tremendous, and I can feel it from the eyes of my teammates.

"Every World Cup match is so important that, as a player, you would stake your life on it. Tomorrow, we will give everything we've got and more."

Son said his excitement for football's global showpiece never dimmed.

"My mindset is similar, whether it's my first or last World Cup. I feel like a child again," he said. "I have never once said this is my last World Cup. The most important thing is to do my job. People can say whatever they want, and I will choose my path wisely."

Korea Republic will face Mexico on June 18 before South Africa on June 24 in their final Group A match.

Sources: AFP, AFC