Sky Sports understands a number of Premier League clubs are tracking Crystal Palace defender Jonathan Parr.
Parr, who missed Palace's successful Championship play-off win over Watford with an ankle ligament injury, is entering the final year of his contract at Selhurst Park and several clubs are thought to be monitoring his situation.
Palace are keen to keep hold of the 24-year-old and are ready to offer the highly-rated full-back a new deal to ward off his suitors.
Parr has established himself as a key member of the side since arriving from Aalesund in the summer of 2011.
The left-back, who can also operate at left midfield, won Palace's player of the year award in 2012 and his performances have not gone unnoticed.
Parr is now Norway's first choice left-back following the international retirement of John Arne Riise and he is tipped for a big future for his country.