Xavi insisted he "cannot give details" on a potential transfer for Erling Haaland, but assured Barcelona are "working for the present and the future" in their dealings.
Haaland has thrived in the Bundesliga since he arrived at Borussia Dortmund from Salzburg in January 2020, scoring 80 goals in 79 appearances across all competitions.
That has made him one of the most sought-after talents, with a host of European's elite circling for when his reported €75million release clause kicks in at the end of this season.
Barca, Real Madrid and Manchester City are said to be the main suitors for the Norway international, who is yet to make his Dortmund future clear.
The Blaugrana club have confirmed 18-year-old winger Pablo Torre will sign from Racing Santander at the end of the season in a deal that could cost them more than €20million, and Xavi was asked whether the teenager could be joined by Haaland.
"I can't give details," he responded at a news conference previewing Sunday's LaLiga clash with Elche.
"The only thing I can say about Haaland is that we are working for Barca, for the present and future. If we announce something, you will know. Like yesterday with Pablo Torre."
Kylian Mbappe seems set to join Barca's Clasico rivals Madrid when his Paris Saint-Germain contract expires in June, and Xavi would welcome the France international's arrival in LaLiga, even if it is not at the Camp Nou.
"The more players at this level, of course, the league would improve," Xavi said. "Obviously, it would be even more attractive."
Xavi believes that Barca still have the pulling power to attract high-profile signings, while he detailed his plans for the incoming Torre.
"It's still one of the advantages," Xavi said of Barca's ability in the transfer market.
"It's explaining the project, trust and being honest with the player we want to sign. The model, the idea of the game, which he will enjoy, the club, which is the best in the world, the city.
"The most important thing is that I haven't seen any player who has said no to Barca. They all want to come. It's exciting to come to Barca.
"We have been following Pablo. He is a natural talent. He can play inside, on the wing, he dominates with both feet.
"He is very young and has the ability to play for Barca for years. It depends on him and his mentality.
"He is a great signing for the present and future. He will have be involved with the first team, but he will play the role of Abde [Ezzalzouli] and [Ferran] Jutgla as a rotational option."