Scrum half Robert Howley, who played 59 times for Wales and was the captain in 22 of those matches, has left Cardiff and signed a three-year contract with Wasps.
With Cardiff only offering a years contract for the 31-year-old, he reluctantly ended a second spell with the Cardiff cub and will now be based in London.
"This is the opportunity to play in the best league in the Northern Hemisphere," he said. "I am here to win medals and show Wasps the commitment they have shown me."
Nearly 40 players were involved in the first Wales Under 18 training session of the season. WRU National Performance Manager Gethin Watts is excited at the potential shown by the group and expects the Regional Under 18 Championship to hone their skills even further.