Norwich will resist any attempts to prise Max Aarons away from Carrow Road this summer.
The right-back has been linked with Manchester United and Crystal Palace but the Canaries are determined to keep him, Press Association Sport understands.
There is little desire to sell ahead of their Premier League return given how Aarons could progress in the top flight with them next season.
He has been mentioned as a possible alternative target for United if they fail to land Aaron Wan-Bissaka but there are yet to be any enquires for the England Under-19 international.
Arsenal and Chelsea have also kept tabs on the defender, who began his career at Luton and joined the Norwich academy in 2016.
The 19-year-old only signed a new five-year contract in October with the Canaries happy to reward their players often for their progress.
Milton Keynes-born Aarons was named the EFL Young Player of the Season and was included in the Sky Bet Championship Team of the Season.
Cardiff have completed the signing of Norwich winger Josh Murphy on a four-year deal, subject to international clearance.
The fee has not been disclosed, but it is understood Premier League newcomers Cardiff have paid around £11million to secure the services of the 23-year-old winger.
The deal makes Murphy one of the most expensive signings in Cardiff's history.
"Josh is a player I've watched for a number of years now and he's always excited me when he runs with the ball," Cardiff manager Neil Warnock told the official club website.
"I think he's at the right age now with his best still to come.
"He can play an instrumental part in helping us to stay in the Premier League and I know he's looking forward to the challenge.
"He's been my number one target since the end of last season."
Wembley-born Murphy came through the Norwich Academy alongside twin brother Jacob, who joined Newcastle last summer.
Murphy scored on his Norwich debut in September and went on to make 108 appearances for the Canaries, scoring 20 goals.
Murphy becomes Cardiff's first summer acquisition since Warnock led the Bluebirds to promotion by finishing second in the Sky Bet Championship last season.
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Norwich and Huddersfield have reached an agreement for Stuart Webber to become the Canaries' new sporting director.
The Terriers had put their head of football operations on gardening leave after he expressed an interest to leave and the clubs have now struck a compensation deal.
Huddersfield played hardball over the move, despite Webber's desire to move to Carrow Road, having been chosen by the Norwich board over two weeks ago.
The teams play each other at the John Smith's Stadium in the Championship on Wednesday.
The former director of recruitment at Liverpool was Norwich's first choice, although they also considered Celtic's head of development scouting David Moss.
Webber revamped Huddersfield's scouting set-up and helped appoint boss David Wagner in 2015, the man who has turned the third-placed Terriers into promotion contenders in under two years.
Webber will move to Carrow Road in the newly created position as the Canaries change their hierarchy following a disastrous season after relegation from the Premier League last year.
He will be tasked with leading the hunt for a new manager after Norwich sacked Alex Neil last month.
Alan Irvine has been in temporary charge for the last three games, but Saturday's 2-0 defeat at Aston Villa left them seven points adrift of the Championship play-offs.
Fleetwood manager Uwe Rosler has been linked with the post, although distanced himself at the weekend, while former Derby and Leicester boss Nigel Pearson has applied.
Ex-England manager Roy Hodgson has been acting as an adviser to majority shareholder Delia Smith with the pair long-term friends.
Alan Pardew is in the frame to become Norwich City's new manager.
The former Crystal Palace boss could replace Alex Neil at Carrow Road after the Scot was sacked on Friday, Press Association Sport understands.
Pardew is available after he was dismissed by Palace in December with the Eagles 17th in the Premier League.
They won six of their 36 games under Pardew in 2016 but the former West Ham chief has promotion pedigree in the Sky Bet Championship having guided the Hammers to the Premier League via the play-offs in 2005.
Former Birmingham manager Gary Rowett is also interested in the job having failed to land the Rangers role with Al-Gharafa boss Pedro Caixinha expected to move to Ibrox.
Neil was axed following five games without a win but the Canaries had already slipped off the promotion pace in the Championship after a disastrous pre-Christmas run, losing seven games in nine matches.