Panathinaikos negotiating a contract extension with Elliott Williams

Panathinaikos wants to re-sign Elliot Williams for next season, as reported by Eurohoops.
Williams’s side is asking 2 million per season to remain in Athens and wants an NBA out till July 15.
Panathinaikos is ready to put on the table an offer so rich for the former NBA but is not willing to include the NBA out.
PAO would love to build around him and doesn’t want to risk his departure for the NBA in the middle of July.