The FC Twente winger has been linked with a host of Premier League clubs in recent months.
Fulham, Tottenham, Liverpool, Aston Villa and West Brom have all been credited with an interest in the highly-rated 23-year-old - whilst Ukrainian giants Shakhtar Dontesk are also said to be keen.
But now Swansea's interest can be confirmed and the player's agent has told Sky Sports that a bid has been lodged.
"I understand that a bid has been made by Swansea," Daniel Evrard said.
"I cannot say anything more about the situation."