Steven Brydon admits attacking David Brown
A man with an "appalling" criminal record is facing an extended jail term over an attack in central Glasgow which left his victim with brain damage.
Steven Brydon, 23, knocked 39-year-old David Brown unconscious with a single punch during the attack in Brown Street in July last year.
At the High Court in Glasgow he admitted assaulting Mr Brown to the danger of his life.
Sentence on Brydon was deferred until next month.
The court was shown CCTV of the incident, which happened in the city centre, near the River Clyde.
Mr Brown was rushed to hospital after shocked passers-by came to his aid.
The court was told that he has since been treated at a brain injury unit in Belfast following surgery.
Brydon had originally faced an allegation of attempted murder but admitted the lesser charge of assault to danger of life.
Following his guilty plea, it emerged that the 23-year-old has a number of previous convictions for violence and had just recently served a jail-term.
Brydon's defence QC, Neil Murray said his client had an "appalling" criminal record.
He added that the injuries to Mr Brown were "catastrophic" and that Brydon was "depressed" at the "dire consequences" for the victim.
Temporary judge Sean Murphy QC deferred sentencing until next month at the High Court in Edinburgh.