Celtic produced a stunning 2-1 victory over Barcelona in the Champions League on Wednesday, rewarded for a disciplined defensive display against the European heavyweight and making the most of their rare attacks.

Victor Wanyama headed the Scottish champions in front in the 21st minute and teenage substitute Tony Watt rounded off another swift counterattack in the 83rd.

Barca dominated possession but could only score in stoppage time when Lionel Messi found the net after being continuously thwarted by goalkeeper Fraser Forster.

Barca's first loss in Group G after three straight wins prevented them from securing early qualification for the knockout phase.