Gavin Henson will learn today if he has any chance of recovering in time to play for the Ospreys in their Heineken Cup quarter-final against reigning champions Munster at Thomond Park on Sunday, 12 April.
The Ospreys and Wales star underwent an MRI scan on the ankle he damaged in the EDF Energy Cup semi-final defeat by Gloucester last weekend and will get the full results later today.
As well as focusing on the Heineken Cup, Henson is also hoping to make a second tour with the British & Irish Lions this summer.
Lions coach Ian McGeechan names his squad on April 21 and will be sweating on Henson's fitness after the golden boy of Welsh rugby left the Ricoh Arena in Coventry on crutches.
An Ospreys statement read: "Gavin Henson met with a specialist and had an MRI scan today and we are now awaiting a formal report and feedback on his condition and prognosis.
"We will be fully informed as to the extent of his injury in the next 24 hours, and will issue a further update accordingly."
Henson, 27, made one Test start for the Lions on the tour to New Zealand which ended in whitewash four years ago. It is the latest setback for Henson, who spent much of last year sidelined with injury.
The Ospreys star has made just 11 starts for Wales since 2005 following ankle and Achilles trouble, although started in all of Wales' Grand Slam games of 2005 and 2008.
WRU TV were on hand at the launch of a major new commercial deal with WRU and Mercedes-Benz South Wales (part of the Sinclair Group), which sees the family company become an official supplier to the Welsh Rugby Union
On the back of the recent Women's Rugby World Cup, the WRU has launched a revitalised Women's and Girls domestic seasonal structure, and the future is looking bright.
Go to www.wru.co.uk/tryourgame for more information
Roger Lewis talks to WRU TV at the announcement of a new £60 million Rugby Services Agreement (RSA) which provides a new and positive contractual relationship between the WRU and its four Regions for the next six years has been agreed.
The Welsh Rugby Union has announced a major new sponsorship deal with Gullivers Sports Travel which will make the UK's leading, and longest established, multi-sport tour operator, an Official Supplier for the rest of the decade.
Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.
WRU Head of Rugby Josh Lewsey met with volunteers across the game earlier this week, championing their role in the sport. He was joined by Wales captain Sam Warburton for part of the day as volunteers took part in a 'Try Out' event for the 2015 Rugby World Cup
Wales Women may not have got the results they wanted recently on the field, but off it they have made massive strides in strength and conditioning - and that is in no small part due to S&C coach Sam Dodge.