Celtic are in transfer talks with Toulouse over striker Marc Libbra.
The £1m rated player has just finished a loan spell at Hibernian, who are also keen to keep him.
The treble winners are also understood to be interested in Colombian striker Victor Bonilla.
Middlesbrough midfielder Neil Maddison's joining Darlington after being given a free transfer.
The former Southampton player has agreed a three-year contract with the Third Division club.