Norwich City are said to value winger Jacob Murphy at £16m, amid interest from Newcastle United.
According to the Newcastle Chronicle, Norwich have already rejected one offer from the Toon, thought to be in the region of £8m.
The Canaries have told Newcastle that they will have to double that if they want to stand a chance at landing Murphy.
Norwich are unwilling to sell Murphy this summer, who is one of the club’s top players.
Murphy has four years left on his contract after signing a new long-term deal last season.
The England under-21 international is due to return to training with Norwich next week but was in attendance at Lowestoft to watch his side win 5-1 on Saturday.