In 2010, Leung won a Dreams Come True scholarship, allowing him to complete his high school studies in Britain at the Brooke House College Football Academy with all costs covered.

[2] With these achievements he would join the most historically successful football club in Hong Kong, South China in 2016.

[7] He would go on to establish himself as a vital member of the team that finished at the time a club record high of fifth within the second tier.

[8] In his first season he quickly established himself as a vital member of the team as the club gained promotion to the top tier at the end of the 2021 campaign.

[9] On 16 October 2018, Leung made his international debut for Hong Kong, coming on as an 82nd-minute substitute in a friendly match against Indonesia.