Celtic FC began their Scottish Premiership title defense with a hard-fought 1-0 home win over Saint Mirren on August 3rd, 2025. The champions secured a narrow victory at Celtic Park thanks to a solitary second-half goal in a match where the visitors proved difficult to break down. Saint Mirren organized defensively and frustrated Celtic for large periods, limiting clear opportunities. The breakthrough finally came from a moment of individual quality, with a Celtic forward firing home from inside the box. The match result sees Celtic take an early three points at the top of the table, while Saint Mirren can take heart from a disciplined performance despite the defeat.