Newport and Wales centre Andy Marinos is fighting to recover from deep vein thrombosis.
The 30-year-old has the life threatening condition and only early detection has stopped it from claiming his leg.
And now Marinos faces a race against time to recover for the World Cup in Australia this October.
"I'm hoping to be play at least a month and a half of the season and try and stake a claim to get into the World Cup squad, but time is not on my side," admitted Marinos.
Marinos had already been ruled out of this year's Six Nations campaign after suffering damaged ligaments in his foot earlier in the season.
And despite his confidence that he will eventually return to full fitness Marinos has admitted that his leg could never fully recover from the condition also known as, "economy class syndrome," due to its association with long-distance travel.
He said: "Once you've damaged an artery in the leg it's never going to be the same again.
"I had anticipated being back in the middle of March but this is obviously a massive set back."
Marinos first made his Wales debut against Ireland in last season's Six Nations championship and was the highlight of an otherwise disappointing campaign for the Principality.
But even if he does recover from DVT his hopes to travel to Australia could be skuppered due to the connections between the condition and air travel.
And a 60 hour round-trip to Australia for the World Cup is unlikely to be beneficial for Marinos' leg.
However, the South African born star is still positive that he will be able to travel
"I've got to be sensible and manage it correctly on any long haul flights, said Marinos. "I've been advised to take some form of blood thinner to help me out."
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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.
Former Wales back row Andy Powell gives a guided tour of The Wern, home of Merthyr RFC, who are determined to prove a lot of people wrong and make their mark in their first season in the Principality Premiership.