Dr John Ip, secretary of the Glasgow local medical committee and a GP in Paisley, said he used to be asked to write one or two such letters a week for patients, but over the last year this had increased to one or two a day.

BBC: Stethoscope

Two other men, former United youth player Matthew Flynn, 22, and John Friel, 22, both from Glasgow, were arrested in relation to the same incident.

BBC: Footballer assault charge dropped

Professor Sir John Arbuthnott, the chairman of NHS Greater Glasgow, said it had been a "long and difficult process".

BBC: NEWS | UK | Scotland | Baby hospital closure confirmed