Nottingham Forest made a £35m offer for the France international on Monday.
Advertisement
Advertisement
However, the Daily Mail says Palace are refusing to sell Mateta for less than £40m this week.
AC Milan and Juventus are also interested in Mateta, though both Serie A giants favour a loan-to-buy arrangement.
Meanwhile, even of Forest reach Palace's valuation, there are no guarantees Mateta will accept a move to the City Ground. Indeed, the centre-forward has informed Palace his favoured move would be Juve.