10 free agents Celtic could target - from former fan favourites to ex-PSG ace

Celtic, on paper, have a squad largely capable of competing across four competitions.

However, managers are always looking for that one extra player and in the free agent market there are a number of experienced professionals who would add to the Parkhead squad.Whether it is an extra option in defence, in attack or bringing back a former favourite who knows what it takes to win in the East End of Glasgow and help the club towards a possible quadruple treble and ten in a row. See 10 possible options.