Toulouse boss Pascal Dupraz is currently recovering in hospital after falling ill during training.
French newspaper L'Equipe reported the 53-year-old suffered a heart attack on Saturday afternoon.
The former Evian coach was only appointed on Tuesday as the successor to Dominique Arribage at the helm of the relegation-threatened Tefece.
The club did confirm that Dupraz would miss the Ligue 1 game at Marseille on Sunday but did not specify the reason.
"Pascal Dupraz had discomfort in training this Saturday afternoon," read a statement on the club's official website. "He spent the night under observation and will not now be on the bench of Toulouse FC at the Stade Velodrome.
"The club and its supporters want to wish the coach a speedy recovery."