Following a breakthrough campaign for the young Hoops in 2022/23, Robertson was rewarded with a new two-year deal until the summer of 2025.
During his time involved with the under-18s set up, the defender helped the Celts lift their 16th Scottish Youth Cup at Hampden Park in May 2023.
Last campaign, the centre-back was involved in five of last season's UEFA Youth League outings, and played his part in a fantastic 2-1 victory away from home against RB Leipzig.
After his first full campaign involved with the B Team set up, Robertson is now a regular at the centre of defence.
The defender is also vice-captain of the young Hoops, with his leadership skills at the back proving extremely valuable.
