Pivot crisis hits Racing ahead of semifinal
However, the legend should be fit for an eventual final, a club source told AFP.
The two-time World Cup champion, 36 and Japan-bound at the season's end, suffered a thigh strain on the eve of the European Champions Cup final that ruled him out of that match, which Racing went on to lose to Leinster.
Remi Tales, who took Carter's place on the bench for the final and then the place of the injured Patrick Lambie after just three minutes, should be given the number 10 shirt against his former club Castres.
Versatile back Antoine Gibert, 20, will likely be named among the replacements, able to cover both Tales and Teddy Iribaren, starting at scrumhalf in the absence of Maxime Machenaud, also injured.
Castres' influential hooker Jody Jenneker will also miss the semi-final after the LNR, the body that runs professional rugby in France, handed him a three-week ban.
The South African was red carded in last week's play-off victory against Toulouse for having struck Maxime Medard.
Agence France-Presse
