Signed a pre-contract agreement with Manchester United in 2004 after Martin O’Neill wanted to build his new Celtic team around him. (4,6)
Played in every position except striker and goalkeeper in his 24 appearances with the club before making 159 appearances for Birmingham City predominantly at right-back. (4,6)
Midfielder who made 37 appearances before leaving in 2018 to forge a career in Italy. (4,9)
Part of the 1981/82 title winning team and would go on to become a top class manager having been at the helm of Everton, Manchester United and West Ham among others. (5,5)
Scored 29 goals in 35 games in the 1982/82 season before being snapped up by Arsenal. He would score 127 goals across two spells for Celtic. (7,8)
Centre-back who has played for clubs in Scotland, England, Canada, Ukraine and India, and represented the Republic of Ireland internationally. (6,4)
Scored 16 goals in 65 games before being snapped up by West Brom for £1.5 million in 2007. (5,7)
Earned a record 102 full caps for the Scotland national team, scoring 30 goals, also a joint-record and won the Ballon d'Or Silver Award in 1983. (5,8)
Scottish-born Republic of Ireland international and became the most expensive export from Scottish football after a £9.5 million move in 2010. (5,7)
No-nonsense defender who made over 200 appearances for the club and scored in a 2-1 Champions League victory against holders AC Milan in 2007. (7,7)
One-club man who has made over 400 appearances for the club in counting and scored a hatrick against Israel for Scotland in 2018. (5,7)
Australian international who made his sole league appearance for the club in 2012. (7,6)
Irish midfielder who left without making a league appearance who’d go on to represent St Mirren, Ross County, Plymouth Argyle and CSKA Sofia. (6,5)