Premier League clubs are on red alert for Celtic striker Gary Hooper.

The Daily Mail says the former Scunthorpe United striker has turned down a new contract with the Bhoys, putting a host of Premier League clubs on red-alert.

Liverpool, Aston Villa, Sunderland, Tottenham and Queens Park Rangers have all registered an interest in the 24-year-old.

Hooper still has 18 months left to run on his current deal and Celtic are continuing with their attempts to sign him to fresh terms.