Bouncers from Manchester’s Factory 251 nightclub have been sacked after an 18-year-old rugby league player was assaulted outside the club.
St Helens academy player Joe Sharratt suffered a serious head injury and is in a stable condition in hospital.
His mother Jane Sharratt told the BBC that he had a bleed on the brain but he was now “sitting up and talking”.
A social media video shows Mr Sharratt thrown to the ground before door staff repeatedly punch his friend.
Greater Manchester Police has appealed for witnesses to the attack at 03:20 GMT on Sunday.
Factory said it “immediately terminated the service contract” with the security contractor Professional Security.
The security contractor also confirmed that it has sacked the staff involved.
A statement on the company’s website stated: “We can confirm that Professional Security hasterminated the contracts of all of the security personnel involved in this incident.
“We are also working closely with the local authorities, police, and the Security Industry Authority to ensure that appropriate action is taken swiftly against all of these door supervisors.”
The company said it was “appalled by the behaviour of the door supervisors shown in the footage of this incident, which contradicts everything that we strive to achieve”.
Mr Sharratt had played for Lancashire Academy against Australian Schoolboys just hours earlier and was also tipped to represent England Youth.
A St Helens spokesman said: “Joe is of impeccable character and is an upstanding member of our Academy system.
“He is a top academic achiever with a very bright future ahead of him alongside his rugby league prowess.”
Factory, which opened in 2010, said: “Having viewed CCTV footage and the video circulating on social media, we can only say that we are shocked by what we have seen.”
The Princess Street club is housed in what was once the headquarters of the Factory Records label that represented Joy Division, New Order and Happy Mondays and The Hacienda nightclub.
Ch Insp Cherie Buttle said: “With a mobile phone at everyone’s fingertips, filming something is often the first thing people think to do but please, pass this on to us so we can fully investigate this matter.”