The winger has not played this season and is not even in the club's 25-man squad for the Premier League.
The 31-year-old has six months left on his contract, and will likely never play for the club again.
Per Football Insider, a knockdown fee or even a free transfer for Bolasie is possible.
His wages of £70,000-a-week being off the bill would help the club greatly.
Middlesbrough have the most serious interest in Bolasie, as he was close to signing for them on loan in the summer.