Celtic flop linked with £3.5million move - what is going on?

Should Celtic follow Germans and cancel some season tickets?

Report: Celtic loan star has no future at parent club

Big January signing leaving Celtic will be no loss

Celtic signing has been one of the biggest disappointments in recent memory

Reported price for improving Celtic stalwart calms German giants' interest

Celtic's £25m-rated player must not be used as bargaining power for current loanee

Celtic have to resist reported eight-figure bids for hero

Celtic disappointment has proved he isn't good enough - Lennon needs to take action

Reported high Celtic bid for Castagne should give hope for German summer buy