The World Game reported the news that Antonis had initially secured a trial with Netherlands Eredivise club FC Utrecht. Now sources close to the player's management have revealed that Parma has tabled an offer substantial enough to trigger an automatic release clause in the 20-year-old’s two-year contract.
Sydney FC confirmed Parma's interest when contacted by TWG.
Roberto Donadoni's side, which is tenth in the Serie A, is understood to have been monitoring the midfielder for some time and moved swiftly to sign him as a reported two-week trial with Utrecht approached.
Sources in Italy say a firm offer was tabled to Sydney 10-days ago and the player is now free to travel, since it has met the A-League club's asking price. He is due to officially join the club when the next transfer window opens on 1 July.
Antonis, who finished the season with a series of strong performances for Sydney as it fell short of the A-League finals, has made 40 appearances for the club.
He will become the second Australian in Serie A, with Socceroos midfielder James Troisi on the books at Atalanta, for which he has made five appearances this season.
The deal would make Antonis the eighth Australian to play in Italy’s top league after Mark Bresciano, Vince Grella, John Aloisi, Paul Okon, Frank Farina, Zeljko Kalac and Troisi.