Canadian cyclist Nic Hamilton has been forced out of Glasgow's Commonwealth Games track cycling events after crashing into an official in the Sir Chris Hoy Velodrome.
Hamilton suffered concussion while the Glasgow 2014 official was knocked out and suffered a suspected broken collarbone in the accident.
A Team Canada statement read: "Nic has been assessed by Canada's medical staff and does not have any serious injuries other than his concussion.
"As per concussion treatment protocol, he will not be able to compete for at least seven days, which forces his withdrawal from the track events at the 2014 Commonwealth Games in Glasgow."
The velodrome had to be closed for 30 minutes, delaying a visit from the Prince of Wales and Duchess of Cornwall.
Pop princess Kylie stole the show as she closed what has been dubbed the 'best ever' Commonwealth Games in Glasgow.
The Jamaican sprinter said the only negative at the Commonwealth Games was the weather, as he hailed the "brilliant" event in Glasgow.
Pop princess Kylie will be top of the bill tonight as the Commonwealth Games comes to a close.