Scarlets full back Daniel Evans has been called up to join the Wales squad departing for the summer tour of Canada and America this Saturday.
Evans replaces Ospreys full back Gareth Owen who has been forced to withdraw to undergo treatment on an injured Achilles.
"It has become obvious to us during our training week that Gareth isn't going to be fit in time to be available for the first Test on tour and so we have taken the difficult decision to leave him at home and bring in cover in that specialist position," said Wales coach Robin McBryde.
"It's a tough call for Gareth, but he has had a glimpse of what is possible now and he knows he will get the rewards again in the future if he retains the same high standards he has shown us already.
"Daniel has a real opportunity to make an impact and we expect him to pick things up as quickly as possible and get stuck straight into training tomorrow morning."
The 21-year-old Evans is a former Wales U20s international who featured in the same age group side as the likes of Wales colleagues Dan Biggar, Josh Turnbull and British Lions tourist Leigh Halfpenny.
He has played six times for the Scarlets this season and is primarily a full-back although he has also turned out at fly-half in the Principality Premiership for Llanelli
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WRU Chief Executive Roger Lewis, Deputy Minister for Culture, Sport and Tourism Ken Skates and WRU Chairman Gareth Davies earlier this week launched a new competition in conjunction with the WRU unveiling its archive room.
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
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Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III