Dutch rider Branko Srdanov is in a serious condition following a heavy crash at Black Dub during practice on Friday night.
The Ice Valley BMW Superstock rider was initially taken to Nobles Hospital on the Isle of Man before being transferred to the UK mainland late on Friday night.
Srdanov had made a stunning start to his debut TT posting a 113.80mph lap on his first ever night of practice last week. On Thursday evening practice the 25-year-old set a 120.112mph best.
At time of writing there was no further information regarding his condition.