Udinese have received a bid of around €30 million (£25.4million) for Alexis Sanchez, according to chairman Franco Soldati.
The Chile forward, 22, scored four goals in his side's 7-0 win over Palermo at the weekend.
"Somebody has already proposed a figure close to €30-35 million, but I can not say who,'' Soldati told Sky Italia. "In any case, the player is attracting interest in Italy and abroad, in England.''
Sanchez first moved to Udinese back in 2008 and has become an increasingly important member of their first team.