The parents and brother of Cardiff Blues centre Owen Williams have arrived in Singapore, where he is in hospital after sustaining a neck injury at the World Club 10s in Singapore.
Williams, 22, was injured as the Blues lost to Asia Pacific Dragons in the third-place play-off.
The Blues have not revealed the extent of his injury.
Players from around the world have taken to Twitter to support four-times capped Williams.
Wales captain and Blues club-mate Sam Warburton tweeted the hashtag "#StayStrongForOws".
Toulon, British and Irish Lions and Wales full-back Leigh Halfpenny added: "Thoughts are with you and your family."
The messages were typical of the support shown for Williams.
His brother, Gavin, tweeted: "So emotional reading all the support. It's overwhelming. In the hospital next to my brother. He's a warrior."
Australia flanker David Pocock wrote: "Owen, sending some love and well wishes from Canberra. We're all thinking of you and hoping for a speedy recovery."
A statement from Cardiff Blues said: "Owen Williams is to remain in hospital in Singapore after sustaining an injury at the World Club 10s.
"The region would like to take this opportunity to thank fans for their messages of support for Owen. Cardiff Blues will issue further updates when they are available."
Williams came through the Blues academy system after being spotted playing for Neath College.
He signed for the senior side in 2010, but only made nine Blues appearances last season because of a hamstring problem.
The former Aberdare RFC player was capped by Wales at under-16 and under-20 level. He made his senior debut against Japan in 2013.