Toulouse prop Daan Human will be sidelined for the second time this season after being diagnosed with a fractured bone near his left eye socket, the South African said on Tuesday.
Human fell victim to a blow by Thibaut Privat during Toulouse's 45-25 win at Montpellier at the weekend.
The South African had only resumed competition at a European Cup match against Harlequins two weeks ago following a four-month lay-off with a left arm injury. He now expects to be out for around a month.
Toulouse manager Guy Noves said the club had not yet decided whether to cite Privat over the incident.
"We haven't ruled out the possibility of citing Privat for hitting out needlessly at a player who had only just returned," from injury, Noves told AFP, adding that the blow had "come from behind".
Human joins compatriot Gary Botha on the French champions' injury list.
Hooker Botha, who suffered a bone fracture in his right leg in the same match, was later Tuesday ruled out for the rest of the season.
Noves said he is now looking for a medical replacement, with Castres' Georgian hooker Akvsenti Giorgadze a possibility, according to the club.
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.