The Chile international is set to be a man in demand in the closing stretch of the transfer window with Nice having had a bid rejected, while he is also on the radar of other clubs, including Leeds United.
Blackburn rejected a bid in the region of £10m for Brereton Diaz and value him at a higher figure, claimed to be around £20m, which his suitors will need to meet.
Now Everton are set to push for the 23-year-old and have been in touch with Blackburn to register their interest.
The Chilean has already scored two goals in three appearances in the Championship this season, but Blackburn could lose him before the end of the window.
Brereton Diaz is one of a number of attacking options on Everton’s radar as they look to beef up Frank Lampard’s final third power.
Blackburn will not be keen to lose Brereton Diaz at the very end of the window and will likely be keen to resolve his future soon.