Greater Manchester Police have today released an a CCTV image or a man who may have been a witness to the attack.
The male aged 34 remains in a critical condition and is fighting for his life following the attack.
The incident occurred at 4.15am on Friday 24th, in which police were called to reports of an assault at Deansgate at the junction of John Dalton street.
Upon arrival Police Officers discovered a 34-year/old man with serious head injuries and collapsed in the street.
He remains in a critical condition in hospital.
Detective Inspector Terry Crompton from GMP’s Major Incident Team has told Breaking News “Just before the assault we believe there was an incident outside the South nightclub.
“We know there were a number of witnesses there and would appeal for them to come forward. We are particularly interested in speaking to a man who may have been assaulted.
“From the CCTV we have studied, this man is not in any trouble with police whatsoever but it is vital he comes forward and tells us what was said as it can help us in our investigation.
“It is now nearly a week since the incident and letters will be distributed to club goers at South tonight to appeal for witnesses. If you were at the club that night and saw anything suspicious, please call us.”
Anyone with information is asked to call police on 0161 856 9908 or Crimestoppers on 0800 555 111