All to be decided in the second leg of Barcelona vs. Napoli: 

Making their first appearance in this contest in nearly 18 years, the Spanish giants fell back in the first half when Piotr Zielinski went in.

But VAR granted Barcelona a penalty in the second half after Adama Traore's cross-shot Juan Jesus' hand.

Torres strode up to send goalkeeper Alex Meret the incorrect way.

The goal will have been of considerable ease for the ex-Manchester City forward after he had missed a great opportunity when the match was goalless, shooting over when well placed inside the box.

However, he also had an excellent chance to win the match for Barcelona late but again sent his attempt over the bar.

Ex-Arsenal striker Pierre-Emerick Aubameyang had a quiet match as he made his first beginning for Barcelona and his first competitive start since 2 December.

Xavi's team, who are in the Europa League after failing to get out of their group in the Champions League, were the finer side after Torres' 59th-minute leveler but could not find a victor despite their late pressure.

The two teams will meet again in Italy for the second leg on Thursday, 24 February.