John Degenkolb has been hospitalised with a breathing problem, he and his Trek-Segafredo team revealed on Friday.
The 2015 Paris-Roubaix winner was forced out of last week’s Tour of Denmark and following tests was admitted to hospital.
“In the last races he did, John suffered from breathing problems and a serious lack of power that prevented him to perform at his level”, said team doctor, Jens Hinder.
“His condition was not improving enough over the last week, so we decided he had to undergo more profound examinations of his heart and lungs.
“John is feeling relatively well but has been hospitalized pending the results of these examinations. We will publish an update on his condition as soon as we have more information.”