The 40-year-old victim was taken to Queen Elizabeth University Hospital by paramedics.
His current condition is unknown.
A 34-year-old man has been arrested and charged in connection with the incident.
He is due to appear in Glasgow Sheriff’s Court today.
A policeman Scotland The spokesman said: “A 34-year-old man has been arrested and charged in connection with a serious assault on a 40-year-old man on Great Western Road, which took place around 9.40pm on Tuesday, September 7. ۔
“She is due in Glasgow Sheriff’s Court on Wednesday, September 8.
A report will be sent to Procurator Mali.
“The injured man was taken to Queen Elizabeth University Hospital for treatment.”