Demba Ba's future at Newcastle United is reportedly in doubt after a dispute over his current contract.
The Senegal striker is believed to have a £7m buy-out clause following his free transfer from West Ham United last summer.
However, the Magpies have been unsuccessful in their attempts to get the 26-year-old to sign fresh terms without the clause, according to The Mirror.
Ba scored 16 goals for Newcastle last season as they qualified for the Europa League.