Barcelona have left Dani Alves out of their Europa League squad but Ousmane Dembele remains registered despite being told to leave the club in January due to the stalemate over his contract.

Alves was one of four signings at Barca last month, along with Ferran Torres, Adama Traore and Pierre-Emerick Aubameyang, but UEFA regulations only allow clubs to add three more players to their European squads midseason.

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Head coach Xavi Hernandez has also had to omit youngsters Abde Ezzalzouli and Ferran Jutgla from his plans in the Europa League. Neither player was registered at the start of the season and they do not count as youth players because they have not been at the club long enough.

Dembele does remain eligible to represent the club in Europe, though, despite reports Barca would rescind his contract after he failed to agree a move away from Camp Nou in January.

President Joan Laporta said on Wednesday that Barca were "assessing" all options available to them when asked if they had considered terminating Dembele's deal.

However, Laporta added that Xavi will have the final say on if the French forward plays for the club again.

"The coach will decide, of course, but I think it will be difficult because Xavi is building a team for the future and if he has a player that doesn't want to be here next season," Laporta said in a news conference.

"If a player doesn't want to renew, they have to understand what the consequences are. We want players committed to the cause. We believe he's accepted an offer from elsewhere [for the summer].

"Barca invested a lot of money in Dembele and we hoped we would watch him here for many years. So, it's disappointing. We have [stood by him] through injuries, we've tried to understand his arguments and we wanted to look to the future with him, so that's why there's disappointment."

Dembele is out of contract in June and, given the failure to reach an agreement to sign an extension, Barca told him he had to find a new club before Jan. 31.

However, the transfer window closed with Dembele still at Barca and Xavi must now decide how to use him between now and the summer. He has been left out of the match day squad for the last two matches.

Barca dropped into the Europa League in December after finishing behind Bayern Munich and Benfica in their Champions League group.

They will face Italian side Napoli in the playoff round of the competition for a place in the last 16. Barca will be at home in the first leg on Feb. 17, with the return fixture taking place at the Diego Armando Maradona Stadium a week later on Feb. 24.