The Old Firm derby between Celtic and Rangers is one of the most historic, and most heated, rivalries in world football.
With more than 100 Scottish league titles between them, the Glasgow giants are among the world’s most successful clubs and their rivalry reflects historic divides of identity, politics and religion in Scotland.
In recent years, the rivalry has taken on a new dimension. Many Celtic fans now claim there is no Old Firm match any more, and their games with Rangers are simply the ‘Glasgow derby’.