Son Heung-min of Los Angeles Football Club controls the ball against St. Louis City in the first half at Energizer Park, May 13, in St Louis, Missouri. AFP-Yonhap

Whenever he thinks about playing at a FIFA World Cup, Son Heung-min becomes a kid again — a boy that once dreamed of representing South Korea at football's biggest tournament.

Now 33, Son will lead South Korea at his fourth career World Cup next month in Mexico. He was named to head coach Hong Myung-bo's 26-man squad in Seoul last Saturday and was introduced as captain.

Son doesn't know if it will be his World Cup swan song, but he does know he will enjoy the experience.

"It doesn't matter how many World Cups you've played. It's like a dream. I feel like I am a little child looking forward to representing this amazing country," Son told reporters in English in a media availability for Los Angeles Football Club (LAFC) at BMO Stadium in Los Angeles on Friday (local time), two days before facing Seattle Sounders. It will be Son's final Major League Soccer (MLS) match before joining the South Korean national team in their training camp in Salt Lake City.