Charlie Smith 
Ian MacNicol/Getty Images Sport
The summer transfer window may have come and gone but it doesn’t mean Celtic can’t still add to their squad before the madness begins once again in the New Year.
The Hoops made six signings in recent months and have dropped just two points out of a possible 27 in their opening nine league games, trailing rivals Rangers, who have played a game more, by one point.
Vasilios Barkas, Albian Ajeti, Shane Duffy, David Turnbull, Moi Elyounoussi and Diego Laxalt all made the move to Celtic Park, with a number of players leaving on free transfers and also on loan.
However, Neil Lennon still has the option to make more additions before January’s window opens, through the free-agent market.
Plenty of big names are currently without a club, so we’ve looked at 10 free agents who Celtic could realistically look to sign over the coming months.
