Published Friday, 06 June 2014
William Dunlop in action on the Isle of Man. (© Pacemaker)
It is understood William Dunlop was in a conscious, stable condition when he was flown to Noble's Hospital for treatment.
He is reported to have suffered a suspected broken leg when he came off his bike at Graham's.
William had been hot on the heels of the frontrunners at the time, with his brother Michael leading over Manxman Conor Cummins and Lincolnshire's Guy Martin.
A short time earlier, in the same race, Michael Dunlop set a new lap speed record of 131.668mph.
He then went on to take the chequered flag, with Cummons and Martin holding on to second and third respectively.
Kiwi Bruce Anstey finished in fourth place, followed by Bournemouth's James Hillier and Morecambe's John McGuinness.
Michael Dunlop had already completed a hat trick of wins across the Superbike, Superstock and Supersport classes throughout the week.
But victory in the Senior TT puts him level with the 11-win tallies of Portadown's Phillip McCallen and Scotsman Steve Hislop.
His uncle Joey Dunlop's all-time record of 26 Isle of Man wins remains unbeaten, with John McGuinness trailing on 21 to date.
© UTV News