09/03/2012 03:14 EDT | Updated 11/03/2012 05:12 EDT

Canadian para-cyclist Dominique Mainguy withdraws from competition

LONDON - Cyclist Dominique Mainguy has withdrawn from the London Paralympics with an injury, the Canadian para-cycling team announced Monday.

Team doctors say Mainguy, from Quebec City, injured herself in a fall while training.

"She suffered a concussion and collar bone fracture," team doctor Susan Labrecque said in a release. "The collar bone fracture prevents her from moving her left arm, therefore she can't hold her handlebar securely."

The time trials for all para-cycling events are scheduled for Tuesday.

"Receiving the news about my withdrawing was like a slap in the face," Mainguy said in a statement. "I did not want to believe it, I wanted to keep training. I am really, really disappointed."