In a wide-ranging interview the Argentine forward said Brazilian's return would be complicated since his new club Paris-Saint Germain won't let go of their star.
Transfer update: Mourinho moving back to Inter?
"I see it as complicated," the Barca captain said. "We would love him to come back for what he means, both as a player and for the locker room.
He continued: "We are friends, we have lived very nice moments, others not so much, but we have spent a lot of time together. However, I find it very difficult [for him] to even leave Paris. PSG are not going to let Neymar get taken away."
Transfer update: 'Juventus want Pogba to join Ronaldo in Italy'
The five-time Ballon d'Or winner also hopes of a future reunion with former Barcelona coach and current Manchester City manager Pep Guardiola.
"Although it is difficult, I would like to work with Guardiola again," he said. "He is one of the best coaches in the world. That's why I would like [him to come back], but I'm telling you that I see it as complicated."
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ