The agent of Hakan Calhanoglu admits he could leave Bayer Leverkusen.

The 23-year-old is unable to play for the remainder of this season as a result of a FIFA ban that was upheld by the Court of Arbitration for Sport last month.

He has been linked with Chelsea, Real Madrid and Barcelona.

"Hakan will be [under contract] at Leverkusen for three years," he told Kicker. "If an offer comes along that is fine for Bayer and which also fits with Hakan, we will do a transfer.

"But the final decision lies with the club."