Fulham winger Damien Duff is a target for Celtic.
The Scottish Sun says Neil Lennon is firming as permanent manager at Parkhead and he has Duff high on his shopping list.
Crystal Palace midfielder Darren Ambrose, Lens hitman Aruna Dindane, Nottingham Forest defender Kelvin Wilson, Southampton midfielder Adam Lallana and Scunthorpe striker Gary Hooper are also among other players being tracked by Celts.