Shocking video footage has emerged of a bouncer knocking out a club-goer with a single punch.
Witnesses said the man was unconscious for at least 10 minutes after being floored outside Rosie’s nightclub on Broad Street in Birmingham on Saturday night.
The bouncer has been suspended from his job following the incident.
Witnesses said a group of men had been fighting outside the club, leading to a group of door security staff restraining them.
But when one of the men “got lippy”, he was punched by a bouncer and fell to the ground.
In the video, the man, wearing a white T-shirt and jeans, can be seen collapsing after he is hit.
One bystander can be heard saying on the video: "That was a KO bro, you got knocked the **** out."
A witness, who did not want to be named, said: "These lads had started brawling on Broad Street outside Rosie's so the bouncers got involved.
"They managed to restrain a couple of them on the ground but when one of the guys started getting lippy this bouncer just punched him one.
"There was no warning, it was just 'bang' and he was sparked out. He folded like an accordion.
“The bouncer then just walked away like nothing had happened.
"The geezer was unconscious for about 10 minutes before his mates helped him up and they went on their way. He looked on another planet though, it must have hurt.”
A spokesperson for Rosie’s said: "We are aware of the incident that took place on Saturday evening and can confirm that the door supervisor involved has been suspended from duty by our contracted door company as they fully investigate the incident.
"Please be reassured that this individual will not be returning to our venue in future.
"We take the issue of customer safety seriously and do not condone this behaviour from anybody representing our business."
A West Midlands Police spokeswoman said: "The video has now been brought to our attention and enquiries are ongoing.
"We would encourage anyone with information to get in touch via Live Chat at west-midlands.police.uk between 8am and midnight, call 101 anytime or contact Crimestoppers anonymously on 0800 555 111 quoting log 2868 of the 31 August."