The former England footballer Paul Gascoigne was involved in a fracas in a London hotel, several witnesses said, and taken to hospital after sustaining a head injury.
The Metropolitan Police said officers were called to a disturbance at London's Ace Hotel in Shoreditch on Tuesday night before a 49-year-old man was taken to hospital.
A Scotland Yard spokeswoman said: "The man has been taken to an east London hospital where he remains in a stable condition."
Witness Alvin Carpio said Gascoigne, who has faced a long struggle with alcoholism, was kicked down the stairs after an altercation with another guest.
Another witness posted on Facebook that it was "a shame" to see Gascoigne in such a state.
Gascoigne's spokesman, Terry Baker confirmed to the Daily Mirror that Gascoigne was treated in hospital for a head wound. Mr Baker added: "He hasn't been arrested. He's about to be released and sent home."
In September Gascoigne was fined £1,000 after pleaded guilty to racially aggravated abuse at his one-man show.