Adam Matthews' move from Celtic to Sunderland can boost the player and Wales, says national team coach Osian Roberts.
Manager Chris Coleman's right-hand man says the ex-Cardiff City defender has a "good challenge ahead".
Matthews, 23, has not played for Wales since their 3-0 defeat against Serbia in September, 2013.
"Playing regularly in the Premier League increases competition within our squad," said Roberts.
"And that's what we require."
|Wales' remaining Euro 2016 qualifiers|
|3 Sep 2015: Cyprus (a)||10 Oct 2015: Bosnia-Hercegovina (a)|
|6 Sep 2015: Israel (h)||13 Oct 2015: Andorra (h)|
Roberts believes Matthews has made the move to the north East at the right time in his career.
"Adam's done well up at Celtic," said Roberts.
"Obviously it's a big club, great history, [with a] great tradition, but it's the right time for him now to come back into the Premier League.
"It's a good challenge for him at Sunderland; a big club and there'll be good competition for places, which he'll need.
"And also there's that opportunity then to be playing against top players… on a regular basis.
"That will only help his development in the next step of his career."
Wales are top of Group B in the 2016 Euro qualifiers with four campaign games left.
Chris Coleman's side face games in September against Cyprus and Israel and they end their quest to be at a first major finals since 1958 against Bosnia-Hercegovina and Andorra in October, 2015.