Elvis Vermeulen will be sidelined for four months after being diagnosed with a herniated disc.
South Africa have released five players to their French clubs for Top 14 duty this weekend.
Wales flanker Dan Lydiate is targeting Heineken Cup glory with Racing Metro this season.
Racing Metro have denied reports they are set to make a bid for Wales and Lions star Leigh Halfpenny.
Harlequins have confirmed the signing of experienced second row Nick Kennedy.
Nick Kennedy is expected to join Harlequins after leaving European champions Toulon.
European champions Toulon have signed New Zealand lock Ali Williams on a one-year deal.
Cardiff Blues have finalised their squad with the signings of Wales duo Gethin Jenkins and Matthew Rees.
Toulon have confirmed the signing of Italy prop Martin Castrogiovanni from Leicester.
Worcester Warriors have confirmed the signing of French prop Jeremy Becasseau from Stade Francais.
Jonny Wilkinson is prepared to discuss the possibility of joining up with the British & Irish Lions.
Castres claimed a shock 19-14 win over Toulon to win the Top 14 title and deny their opponents from doing the double.
Toulon stand on the verge of an historic Euro-French double as they face Castres in the Top 14 final on Saturday.
New Zealand winger Hosea Gear will leave the Highlanders at the end of the season to join Top 14 outfit Toulouse.
Vern Cotter has denied reports that he offered to quit as coach of Clermont to manage Scotland earlier than expected.
Clermont hooker Benjamin Kayser has confirmed he will be fit for France's tour of New Zealand this summer.
Clermont head coach Vern Cotter has confirmed that he will leave the Top 14 outfit at the end of next season.
Castres will face Toulon in the Top 14 Final after claiming a shock 25-9 victory over Clermont in in Nantes.
Toulon remain on course for a Heineken Cup and French league double after beating Toulouse 24-9 in the Top 14 semis.
Heineken Cup champions Toulon will look to close in on the double when they tackle Toulouse in the Top 14 semi-final.