The Yorkshire club are very confident that if a move for Grayson was made by Rovers, then they would be able to fight it off, the Huddersfield Examiner reports.
Fans of the Terriers won't want to be bothered by Blackburn again after we tempted their top scorer Jordan Rhodes to Ewood Park. They certainly won't want the same thing happening to their manager.
But sources say that no approach has been made by Blackburn for Grayson so they don't expect to lose him very soon.
The former Blackpool and Leeds manager has lead Huddersfield to a league one play off triumph last May after joining the club in February.