Cardiff Blues fly-half Rhys Patchell will leave the region at the end of the season after rejecting a new contract.
The 22-year-old is out of contract at the end of the current campaign and has been linked with the Scarlets.
"We are disappointed that Rhys has turned down a contract offer and will move elsewhere at the end of this season," Blues coach Danny Wilson said.
"He has played well for us at both full-back and fly-half this season."
Wilson added: "I know he will continue to give everything he has for the region until the end of the season."
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Gareth Anscombe's arrival at the Blues in July 2014 from Waikato Chiefs in New Zealand saw Patchell moved to full-back to accommodate the newcomer.
"We have good competition for the number 10 jersey and it is a shame that Rhys will not be a part of that," Wilson added.
"We want players who want to be here and fight for a place in the team."
Scarlets confirmed in November they were in talks with Patchell, and head coach Wayne Pivac said: "He's certainly one who is of interest to us."