Lamine Yamal's penalty with the last kick of the game rescued Barcelona a 1-1 draw against Newcastle at St James' Park.
Harvey Barnes' 86th-minute strike had put Newcastle on course for a famous victory over the La Liga giants but Malick Thiaw's unnecesary challenge on Dani Olmo deep into stoppage time handed Barca a late lifeline.
Yamal made no mistake, sending Aaron Ramsdale the wrong way with what was the final kick of the game to give Barcelona the advantage in the last-16 tie ahead of the second leg at the Camp Nou next week.
More to follow...
Story of the match in stats...
When are the knockout stages?
Round of 16 second legs: March 17-18
Quarter-finals: April 7-8 and 14-15
Semi-finals: April 28-29 and May 5-6
Final: May 30 (Puskas Arena in Budapest, Hungary)