Barcelona celebrated a landmark night for Xavi with a 1-0 victory away to Porto in Portugal in what was on paper their toughest assignment in Group H.

Ferran Torres scored the only goal as Lamine Yamal became the youngest ever starter in a Champions League match at the age of 16 years and 83 days.

“We had been talking about it, this match was worth half of the qualification,” Torres told broadcaster Movistar.

Barcelona ended the game with 10 men after Gavi was sent off late on.