Rennes coach Frederic Antonetti and general manager Pierre Dreossi face a tough call on whether to suspend two of their young stars after revelations they were caught on a night out whilst on France Under-21 duty.
The French Football Federation are looking into what they describe as ``a serious matter'' as five players opted to leave the camp in Le Havre on Saturday following a 1-0 play-off first-leg defeat to Norway the previous night.
Rennes midfielder Yann M'Vila and defender Chris Mavinga - along with Real Sociedad striker Antoine Griezmann, AC Milan midfielder Mbaye Niang and Toulouse midfielder Wissam Ben Yedder - are reported to have taken a taxi to attend a nightclub on the Champs-Elysees, returning at dawn.
M'Vila and Mavinga both then played the full 90 minutes on Tuesday of France's 5-3 defeat in Norway, for a 6-3 aggregate loss, prior to the story emerging yesterday.
A bitterly disappointed Dreossi said: ``We must not let this go. We will support the decision of the FFF.
``We'll get in touch with them, decisions will be made, and we will be part of those decisions.
``But we deplore what happened. I think it is a breach of the honour of wearing the jersey of the team of France and Stade Rennais.
``This is unfortunate and disappointing for the image of our club. It shows a lack of respect.''
A statement on the Federation's website read: ``Given the seriousness of the violation and image of the FFF and football, this behaviour will be subject to the scrutiny of the Federal Commission for discipline.
``The players involved will be called in as soon as possible and will answer for their actions.''
In the short term it is now up to Antonetti and Dreossi to decide whether M'Vila and Mavinga should play in tomorrow's clash with current champions Montpellier at the Stade de la Route de Lorient.
Antonetti is already without defender John Boye and midfielder Vincent Pajot due to an accumulation of yellow cards while another midfielder, Sadio Diallo, is doubtful with a back injury.
Antonetti said of M'Vila and Mavinga: ``They showed they were not reliable.
``They endangered their friends, their team, everyone. This is where it's serious.''
With regard to his selection dilemma, he added: ``There are no good solutions.''
Montpellier, struggling in 15th with just two wins from their eight matches in defence of their title, at least have forward John Utaka, midfielder Anthony Mounier and defender Henri Bedimo all returning from injury.