A supporter reached out to film during the Tour de France stage between Lille and Arendal.
Then the Italian came at full speed and cycled straight into him, which resulted in a nasty collision.
We flew over the handlebars down on the cobblestones and took another cyclist with us in the fall.
On Thursday, the 35-year-old's stable Totalenergies came out with the news that Us had broken his neck after the incident.
"The whole team wishes you a speedy recovery," they wrote in a statement.
Us, who after the crash got on the bike again and completed the race, will now cancel his participation in the tour.
The winner of the stage was Simon Clarke from Australia.