The 20-year-old Croatian starred for his nation at the World Cup last summer and has already notched eight goals in all competitions for the Serie A giants this term, despite their underwhelming start to the campaign.
This has led to suggestions that he’s ready to move on should Inter not live up to his expectations, which has alerted Everton.
Merseyside rivals Liverpool have been aligned with the youngster in the past, as have the likes of Manchester United and Arsenal, with Kovacic one of the continent’s most highly-rated emerging players in his position.
But Toffees chief Roberto Martinez is eager to get him to Goodison Park, with a £15m offer in the pipeline.
The Spaniard already possesses plenty of attacking talent, with the likes of Ross Barkley and Kevin Mirallas able to support a lone striker.