Castres - Castres scrumhalf Rory Kockott has been ruled out of Saturday's crucial Top 14 game with Oyonnax after suffering a quadriceps injury in France's Six Nations defeat against Ireland, the club's scrum coach and recently appointed consultant Maurico Reggiardo announced on Tuesday.
The 28-year-old South Africa-born player -- who became eligible to play for the French last year -- may not be fit enough either to be named in the Six Nations squad for the game with Wales on Saturday week.
However, his selection for the squad was already up in the air as his performance in the 18-11 defeat by Ireland had been criticised by coach Philippe Saint-Andre.