Former Giro d'Italia and two-time Grand Tour winner Nairo Quintana has been hit by a car during training in Colombia.
He was subsequently taken to a hospital with a possible knee injury, his Arkea-Samsic team said on Friday.
Quintana joined the French cycling outfit Arkea-Samsic last September from Spanish team Movistar.
"Nairo Quintana has been hit by a vehicle during training, we will give you more information about his condition as soon as possible," the French outfit said in a statement.
Arkea-Samsic team director Emmanuel Hubert said Quintana injured a knee. Hubert spoke with Quintana on the phone after the incident.
The 30-year-old Colombian, who won the Giro in 2014, the Vuelta in 2016 and twice finished runner-up on the Tour de France, went to a hospital for some checks.
His team manager Emmanuel Hubert told French sports daily L'Equipe that Quintana's knee hit the ground.
He is scheduled to resume racing at the Tour de l'Ain on August 7.