In January 2011, while playing amateur football for Sham Shui Po, through the Nike The Chance programme, Lau won a place along with 3 other young Chinese footballers in Shanghai, China to fly to the United Kingdom and compete among the 100 players from all over the world, for the 8 available places to train there.

[1][2] In addition to playing for Sham Shui Po, Lau also represented Beacon College's football team, along with 4 other club mates.

Hong Kong national team coach Ernie Merrick praised his outstanding performance.

[4] At the year-end HKFA Award Ceremony, Lau was named the Best Young Player of 2011–12 season.

[7] On 10 June 2012, Lau made his international debut in a friendly match against Vietnam.