Whether he stays or goes, this Celtic man has unwittingly provided cautionary tale

"Congratulated by Neuer"; former team-mate backs Celtic goalkeeper to shine

'He has a presence'; Celtic's big transfer target tipped to become one of the best in Europe

Report: Celtic target is about to travel to Scotland to sign a four-year contract

Celtic target has ambitions to play at a higher level than the Scottish Premiership

Report: Celtic in transfer standoff as no progress made on much-needed signing

'Looks so good', 'Guy is quality'; Fans are excited after hearing who Celtic want to buy

Report: 6ft 5in international valued at £6m wants a move to Celtic

Hammond reportedly backed to make a deal - bad news for Celtic man?

Reported Celtic link to £6 million man could cast doubt on future of Europa League hero