Mark Webber raced in the final four grands prix of the 2010 campaign with a fractured shoulder after suffering a mountain bike accident ahead of the Japanese Grand Prix.
The Australian, who was leading the title standings at the time of the crash, kept the injury secret from his team at the time and only revealed it to the public in a new book he has just published.
Webber says that he suffered the injury after colliding with a friend - which came on his first time back on a mountain bike since he broke his leg and fractured his shoulder during a crash in Tasmania in late 2008.