It took some time to get used to the idea but Barcelona have officially played in the UEFA Europa League for the first time in more than a decade (and for the first time since it was renamed). Their campaign began against Napoli, a team they have faced in the Champions League just two years ago.

Even though Xavi Hernandez's men headed into this match in high spirits as they started to get results in La Liga, the visitors put themselves in front in the first half through Piotr Zielinski. 

Barca struggled to turn things around but the handball rule gave them a lifeline in the second half. After VAR review, referee Istvan Kovacs determined that Adama Traore's cross hit Juan Jesus' hand inside the box and Ferran Torres netted the spot-kick. Unsurprisingly, fans were all over the Internet for what they've considered a controversial call.

Funniest memes and reactions to Barcelona-Napoli draw, controversial penalty

This was not the result Barcelona were expecting to get at home but given that they were trailing until the penalty, it is not that unsatisfying either. Barca and Napoli will meet on Thursday, February 24, at the Diego Armando Maradona stadium in the return leg. Check out the best memes and reactions from the first leg.