"Gareth Thomas is a credit to Cardiff Blues who has truly brought honour to the jersey as a formidable player and a strong leader.
"His private life is his own concern and we will continue to acknowledge him on the qualities he brings to the squad as a player and an individual who exemplifies the values of commitment, determination and fair play we expect from our team.
"Gareth will always be revered for his achievements as a player and he deserves his place of honour in Welsh rugby history.
"Our teams are selected on merit and we will always choose players with the talent and ability to achieve the demanding standards we now set."
WRU Group Chief Executive, Roger Lewis, said:-
"Gareth Thomas is one of Welsh rugby's outstanding players, a former captain, he holds the national appearance record(100 caps) and has scored 40 tries for his country.
"He was at the helm for the 2005 RBS 6 Nations Grand Slam, Wales' first clean sweep in the annual competition since 1978, and also captained the British and Irish Lions during their summer tour of New Zealand earlier that year.
"Gareth is a rugby leader and also a man of great humour. He is most probably one of the most popular players amongst his peers. He has been an inspiration to generations of rugby followers and continues to play at the top level of the game with the Cardiff Blues.
"Just as we support Gareth at this time that stance will remain consistent for any player.
"Whilst Gareth's private life is entirely irrelevant to his career as an international sportsman it would be remiss of the WRU not to remind him of the high esteem in which he is held in the game in Wales at a time when he has decided to bring such personal reflections to public notice."