At around 9.20am, on Tuesday 8 June 2021, officers were called to a report of a sexual assault after a woman in her 30s was attacked on Wilbraham Road, Chorlton.
The victim reported that a passing cyclist stopped nearby who may have potentially witnessed the incident.
Detectives are keen to speak to the cyclist to help with their enquiries, as well as any member of the public who may have witnessed this incident, or who may have dash cam or CCTV footage.
Anyone with information, or anyone who recognises the man pictured in the CCTV image is asked to call 101, quoting log 795 of the 8th June 2021.
Alternatively, contact Crimestoppers anonymously on 0800 555 111.