Joan Laporta announced that Barcelona and Manchester City will play a charity match on August 24 at Camp Nou to raise funds for ALS research.
Juan Carlos Unzue and Pep Guardiola were also in attendance, and the future of Bernardo Silva became a topic of discussion.
The Barcelona president joked about the possibility of the Portuguese star playing that game as Barcelona player.
Guardiola responded by saying that on August 24 at the Camp Nou, City will be "Bernardo Silva and ten more".
There was laughter in the room, but later in the press conference, Guardiola discussed the player's future once again.
Although he wants Silva to stay at City, he wouldn't rule out a potential sale.
"Two clubs like Barcelona and Manchester City, the names are varied, there's a lot of them," said Guardiola.
"Right now I think Bernardo will continue with us. Our goal, as a club, is for him to stay with us, but I have always said I don't want players that don't want to be with us.
"But Bernardo is important and I think he will stay. It's true he could be with Barcelona, I don't know what will happen."
As for Laporta, he poured cold water on the situation.
"I like to include the best players in Barcelona, we're working hard to improve our team," said Laporta.
"The people responsible for that are talking about players, and beyond having a bit of a joke, I don't think this is the right moment.
"We're working for the best team next season."