Fluminense winger Matheus Martins is interesting Leeds and Udinese.
TNT Sports says Leeds United were linked with a move for Martins during the summer.
They claim that the Whites, along with Ajax and Benfica, had sent scouts to watch him in action, though no move ever materialised.
Now, Serie A side Udinese have had an offer rejected for Martins worth around €8 million and a 10% sell-on fee.
However, Fluminense are reportedly seeking €9 million and a 15% sell-on fee for Martins instead, meaning Leeds now know what they must offer if they want to prise the 19-year-old to Elland Road.