Detective Constable Qadir Hussain, of GMP's City of Manchester district, said: "This was a shocking incident which has left a vulnerable woman feeling extremely frightened and fearful, and understandably so.
"Since this offence occurred, officers have been conducting a thorough investigation to find the man responsible, including forensic analysis and CCTV enquiries.
"As a result of these enquiries, police are now able to release an image of a man they want to speak to in connection to this crime."
If anyone recognises this man or has any information, please do not hesitate to speak to police on 0161 856 1146 quoting incident number 1597-15/05/2021.
Reports can also be made anonymously to the independent charity Crimestoppers on 0800 555 111.
Greater Manchester Victims' Services provide emotional and practical support to anyone affected by crime and are a confidential service.
The service can be contacted by visiting the website at: https://crowd.in/AyVynW or calling 0161 200 1950.
