Former Wallabies back James O’Connor will miss at least two weeks of the Top 14 competition with illness.
O’Connor was hospitalised for tests after feeling unwell earlier this week but it is the results were positive and there are no concerns over his long-term health.
The 25-year-old posted on Twitter on Saturday morning, saying the hospital visit was due to “hypoglycaemia and game/training fatigue.”
Toulon released a statement overnight, saying O’Connor would continue to undergo tests outside of hospital.
“In the interest of the player's health and precaution, James O'Connor has passed a series of tests and medical examinations in hospitals that have also shown reassuring and satisfying,” the statement read.
“These examinations are continuing, but have no need to be performed in a hospital.”
“The Toulon Rugby Club and its medical service want to take the time to do all the necessary tests before the player resumes the competition but his rugby career is in no way called into question.”
Toulon plays Brive at home on Sunday morning (AEDT) but are yet to announce their team for the match.
In other injury news, Will Genia is reportedly set to miss the rest of the Top 14 season, with a knee injury that has dogged him since the Rugby World Cup.
Genia has returned to Australia in recent weeks, declaring his desire to return to the Wallabies fold, for specialist advice on the injury but is unlikely to run out for new side Stade Francais for the rest of the season.
Wallabies teammates Sekope Kepu and Adam Ashley-Cooper will come off the bench for Bordeaux in their match against Pau.
Montpellier faces Toulouse on Monday morning (AEDT).
Former Wallabies teammates George Smith and James Horwill will come up against each other when the Wasps take on Harlequins.
Smith will start at openside flanker for Wasps while Horwill will play lock for the Quins.
Cooper Vuna will start on the left wing for Worcester when they face Northampton this weekend.
Taqele Naiyaravoro played 57 minutes on the right wing for Glasgow in an 18-15 win over Newport Gwent overnight.
Mark Chisholm will start at lock for Munster against Benetton Treviso.