Celtic have concerns after Beram Kayal sacked his agent.
The Daily Mail says Celtic are prepared to offer Kayal a significant increase on the £7,000 a week agreed when he left Maccabi Haifa last summer.
However, in a move sure to raise concerns within the club, Kayal has parted company with representative Dudu Dahan after a disagreement over the player's wage expectations.
With a £10m price tag having been placed on his head, Kayal wants a deal to bring him in line with Celtic's highest earners. Bolton Wanderers and Aston Villa are the latest clubs to be linked with the player.
