Sunderland will face a battle to hold on to forward Benji Kimpioka.
The youngster is attracting interest from European clubs, according to a report by the Northern Echo.
Kimpioka, who is 19 years-old, is out of contract at the end of the season and sides abroad can sign him on a pre-contract agreement if his future at the Stadium of Light is not resolved.
The highly-rated teenager is getting game time under the new Black Cats boss Phil Parkinson but is one of a number on players to have less than twelve months on his contract. The likes of Jon McLaughlin, Tom Flanagan, Chris Maguire and Duncan Watmore are all in the same boat.
Kimipioka has made 11 appearances in all competitions so far in this campaign for Sunderland and has chipped in with three goals for the League One side.
He was born in Kvista, Sweden, and started his career at IK Sirius before he moved to England in July 2016 to sign for the Black Cats.
The forward was a key player for their youth sides before he was handed his first team debut in a third tier clash against Peterborough United in October 2018.
He has also played for Sweden at Under-19 and Under-21 level so far in his career and is being tipped to play for their senior side over the next few years.
As European clubs circle, can Sunderland keep hold of Kimpioka or could he leave the club like Josh Maja did last season?