Parkhead witnessed one of its greatest nights as goals from Victor Wanyama and substitute Tony Watt gave Celtic a momentous 2-1 Champions League victory over Barcelona.
It was a Group G clash that the Hoops were not supposed to win but the east end of Glasgow exploded in the 21st minute when midfielder Wanyama headed in from a Charlie Mulgrew corner.
And in the 83rd minute 18-year-old Watt, on for Mikael Lustig to make his debut in the competition, raced away to score the second, leaving Lionel Messi's late strike a consolation.
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