Earlier on Friday, the Dutchman Fabio Jakobsen woke up from a coma after a crash on the first stage of the Tour de Pologne.
Delage, 35, must have been conscious when he was taken to hospital.
"Mickael Delage suffered a severe fall on the Tour de Pologne and has been taken to hospital. He is conscious ", Delage's team Groupama-FDJ writes on Twitter.
CLIP: Violent crash in Poland (07/08)
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Bicycle crash in Poland. Photo: TT.