Newcastle have made an undisclosed bid for Swansea left-back Neil Taylor.
BBC Sport understands the bid is about £1m, which would trigger a buy-out clause in the 22-year-old's contract.
Swansea chairman Huw Jenkins said: "We have received a proposal from Newcastle regarding Neil, but it has not been accepted or rejected at this stage.
"We have received a number of bids for Neil's services and we will be talking it over with him when he returns from a break next week."
Taylor made 30 league appearances last season as the Swans won promotion to the Premier League.
Swansea signed him from non-league Wrexham at the start of last season for a tribunal-fixed fee of £150,000 plus 10% of any future transfer profit.
The highly-rated Wales international agreed a three-year contract at the Liberty Stadium.
Jenkins added: "Neil is a player we brought to the club this season from the Conference with Wrexham with a view to him progressing and developing with us over a number of years.
"The last thing on our minds is to sell anyone over the summer."
Taylor began his career in the youth set-up at Manchester City before leaving for Wrexham at the age of 15 because of injury.
He made more than 80 appearances over three years for his hometown club.
Taylor was a key figure in the Swans' promotion-winning campaign, but missed the play-off final triumph against Reading through suspension after being sent off in the first minute of the semi-final first leg against Nottingham Forest.
He earned his first senior Wales cap under John Toshack in a friendly against Croatia in May 2010. and has since won two more.