LUKE Priest remains in a critical but stable condition at after suffering multiple injuries.
The 21-year-old Stoke Spitfires star laid his bike down in Heat Six of the home fixture against Scun-thorpe last Wednesday when Tai Woffinden fell in front of him.
Priest slid into and then under the air safety fence where he suffered a broken wrist, elbow and pelvis and internal organ damage.
His father John said: 'Luke has had an operation to repair a three-inch tear in his bladder and we understand that has gone well which is obviously a high point for us.
'He has had an operation on his pelvis and has an external fixator attached. Work on his wrist and ankle will come later though they will also need to reconstruct his rectum.
'Luke is still heavily sedated and his internal organs are being monitored. His condition remains critical but stable and we would like to relay our thanks to all the medical staff which have treated Luke both at the track and since his admission to hospital.'
The meeting was held up for around 80 minutes, during which time riders from both teams debated whether the meeting should continue.
Though the atmosphere was muted, Scunthorpe ran out 31-45 winners against the SAS Spitfires. In Priest's absence, Stoke have drafted in Adam Allott who will make his debut against Mild-enhall tonight.
In what was a bad week for the club, Stoke Easy Rider Potters fell to a 42-53 home defeat to Redcar on Saturday.
Redcar were much the sharper of the two teams and registered nine race wins on their way to an untroubled victory.
Four exclusions for the home team from referee Barbara Horley did not appease the team managers or riders concerned. Trent Leverington was excluded from Heat Eight when Chris Kerr fell.
He said: 'He (Kerr) slowed up in front of me and I went for the gap. He probably realised I was there and tried to shut the door, but I was inside and referee's have got it wrong if they want to stop any contact at all.'
The Potters travel to Berwick on Saturday. A collection for Priest has raised almost £1,200. Organ-iser Ian Lewsey said: 'Luke is very popular and will need a lot of support over the difficult weeks and months ahead.'
Donations can be made via www.focuscommunications.co.uk, or by post to: The Luke Priest Fund, c/o 7 Chatham Way, Haslington, Crewe, CW1 5NU.