Tonga prop Sona Taumalolo will sit out Friday night's clash with Wales after receiving a four-week ban.
Taumalolo was sent off for punching France lock Yoann Maestri, who was also red-carded for striking the Tongan in the same incident, during last weekend's 38-18 win for the hosts in Le Havre.
Maestri escaped further sanction when both players appeared before a disciplinary committee in London.
But disciplinary chiefs dished out a more severe punishment to Taumalolo after studying video footage of the second-half clash and he misses the trip to the Millennium Stadium.
A statement read: "Both players had accepted prior to the hearing that their actions had warranted a red card, and the committee deemed that Sona Taumalolo's offence was in the mid-range of the IRB's sanctions (five weeks), allowing one week off for mitigating factors.
"Sona Taumalolo is free to resume playing on 16 December 2013, and both players have the right of appeal."