Cheng Tsz Sum

Cheng Tsz Sum (Chinese: 鄭子森; born 20 March 1999) is a Hong Kong professional footballer who currently plays as a left back or a left midfielder for Hong Kong Premier League club Rangers, on loan from Tai Po.

Cheng Tsz Sum

Personal information
Full name	Cheng Tsz Sum
Date of birth	(1999-03-20) 20 March 1999 (age 26)
Place of birth	Hong Kong
Height	1.77 m (5 ft 10 in)
Position(s)	Left back Left midfielder
Team information
Current team	Rangers (HKG) (on loan from Tai Po)
Number	99
Youth career
2012–2017	Kwai Tsing
Senior career*
Years	Team	Apps	(Gls)
2017	Rangers (HKG)	0	(0)
2017–2018	Lee Man	1	(0)
2018–2020	Tai Po	1	(0)
2020–2021	Eastern	2	(0)
2021–2022	Rangers (HKG)	1	(0)
2022–	Tai Po	41	(1)
2025–	→ Rangers (HKG) (loan)	0	(0)
International career‡
2017	Hong Kong U-19	1	(0)
2021	Hong Kong U-22	2	(0)
* Club domestic league appearances and goals as of 29 July 2025 ‡ National team caps and goals as of 23 October 2021

Club career

On 5 August 2017, Cheng was unveiled as part of Lee Man's inaugural squad.^[1]

On 31 July 2018, Cheng was named as one of Tai Po's summer signings.^[2]

On 1 July 2020, Eastern announced that Cheng would join the club.^[3]

On 6 September 2021, Cheng rejoined Rangers.^[4]

On 8 August 2022, Cheng returned to Tai Po.^[5]

On 29 July 2025, Cheng joined Rangers on loan for the 2025–26 season.^[6]

Honours

Club

Tai Po

• Hong Kong Premier League: 2018–19, 2024–25

International

Hong Kong

• Guangdong-Hong Kong Cup: 2019