Up to 100 Italian thugs tore through Piebury Corner restaurant on Holloway Road near Arsenal's stadium in scenes Tim's pal Richard Morey described as being like something out of the early 80s, reports the Mirror.
Tim, of Romford, Essex, needed half a dozen stitches and had to undergo a brain scan following the attack.
Another man also needed hospital treatment.
"They were singing but then one of them ran over and punched one of the guys outside the pie and mash shop.
"There was a bit of a tussle out the front and then one of the windows came through.
"One of the Italian guys hit Tim over the head with a cast iron stool and left him bleeding badly."
Richard, of Cuffley, Hertfordshire, added: "I have never seen anything like it - it was like going back to the early 80s.
"There were two kids in the shop that must have been 10 or 12 if that. It was unbelievable."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball