The Chelsea goalkeeper has not posted on Instagram or been pictured in training at Chelsea since last week
Christian Jeanpierre and Frederic Calenge said: “All we can say is that to let us know like that at the very last minute is not very ‘Courtois’.”
Their comments were a dig at the Chelsea man’s name, which translates in French to courteous.
The station’s editor-in-chief Marc Ambrosiano also tweeted: “Unfortunately Thibaut Courtois is suffering from gastroenteritis, and has had to withdraw from appearing on Telefoot this morning.
“We wish him a speedy recovery.”
Courtois’ availability is in question for this weekend.