All Blacks legend Dan Carter is facing a race against time to be fit for Perpignan's crucial Heineken Cup clash with the Ospreys on Saturday.
The 26-year-old limped out of the French side's 40-14 home win over Bourgoin in the Top 14 at half-time after aggravating an old Achilles injury. He is now set to undergo further tests on the problem.
"The pain was getting worse after about half an hour of the match and as a precaution I came off at half-time," Carter told AFP.
"It was frustrating because I really wanted to play and the team had a really good match. I'll get tests on Monday and will decide with the staff if it would be better to take several days off from training."
The game against the Ospreys will be vital to both side's hopes of qualifying for the quarter-finals. The Ospreys, who beat Perpignan 15-9 at the Liberty Stadium in Round 2 before Carter had joined the club, are level at the top of the Pool 3 table on 15 points with Leicester Tigers, with the French side trailing in third with nine.
To stand any chance of qualifying for the last eight Perpignan must gain a bonus point victory from their final two games and hope other results go their way.
The Ospreys, who qualified for the quarter-finals for the first time last season, know they must take something from the game at Stade Aime Giral to set up a sixth round win-at-all-costs game with the Tigers in Swansea.
Perpignan's victory kept them in third place behind leaders Toulouse and Stade Francais in the Top 14. Meanwhile, the Ospreys lost top spot in the Magners League with a 25-21 home defeat at the hands of Munster on Friday night.
Wales Head Coach Rob Howley talks to WRU TV's Sebastian Barrett about the 36-man squad he has just named for the forthcoming Under Armour series, which includes two uncapped players, Ospreys duo Sam Davies and Rory Thornton.
Head coach Rowland Phillips is deligthed he can now call BT Sport Cardiff Arms Park home for his Wales Women's side, who launch their international season next month with games against Scotland and UK Armed Forces in the heart of the capital city.
Wales Sevens star Sam Cross has put his home town club of Brynmawr on the map after winning a silver medal at the Rio Olympics with Team GB. His club have now honoured him by naming their players bar after him, as WRU TV discovered at the official launch, recently.
One of the newest members of the Principality Premiership, Bargoed admit it's proving to be a steep learning curve at the highest level, but are determined to become a force to be reckoned with. WRU TV visited the club last weekend when they took on Llanelli.
Table-topping Aberavon travel to north Wales to tackle RGC 1404 as both teams defend unbeaten starts to the season in the Principality Premiership. WRU TV's Graeme Gillespie visited the Wizards to see how their preparations were going for the game of the weekend.
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.
Cardiff managed to keep their unbeaten record at home intact, but only just as Bridgend made them work extremely hard before the Blue and Blacks secured a hard fought Principality Premiership win at the BT Sport Arms Park last night.