Liverpool and Arsenal target Jadson has informed Shakhtar Donetsk of his desire to leave the club.
The Brazilian midfielder signed for Shakhtar from Atletico Paranaense in 2005 and has scored 39 goals in 163 games for the Ukrainian outfit.
His exploits at the Donbass Arena are alleged to have alerted a number of clubs, with Liverpool and Arsenal the most high-profile clubs to have been linked with the 28-year-old.
It was initially reported that Jadson was identified by Arsene Wenger as a potential acquisition following the summer departure of Gunners captain Cesc Fabgreas.
Meanwhile, after Liverpool lost Lucas Leiva for the season to a knee injury, it was suggested that Kenny Dalglish could bring Jadson to Anfield in order to bolster his midfield ranks.
Should Arsenal or Liverpool retain a genuine interest in Jadson, then they will surely have been alerted to his potential availability.
Jadson would, however, favour a move back to his native Brazil, and rejoining first club Atletico Paranaense holds a particular appeal
"I have spoken with people from Shakhtar and I made it clear that my wish is to leave. Nothing at the moment is concrete, however," he told Parana Online.
"My conversation with [Atletico president-elect Mario] Petraglia was real, he is a friend, but we did not discuss a contract. If one day I could return, I will come back with great love."