Cheng Tsz-Sum is a Hong Kong, China professional footballer who plays as a defender for Biu Chun Rangers, known for his pace and defensive diligence. Born on March 20, 1999, the 26-year-old full-back stands at 177 cm and brings athleticism to the Rangers' backline. His career has been spent within the Hong Kong Premier League system, where he has developed into a consistent performer. Cheng's key attributes include his ability to overlap in attack and recover quickly in defense, making him a modern full-back suited to the demands of the domestic game. While team honors are pursued with Biu Chun Rangers, his individual market valuation reflects his standing as a solid professional in the league. Off the pitch, he is a dedicated athlete focused on his craft. In summary, Cheng Tsz-Sum is a reliable defensive presence whose speed and commitment make him a valuable asset for his club in Hong Kong football.