The Camp Nou club's sporting director praised the Brazilian, while hinting there will be more new faces before the window closes.
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On Tuesday, Zubizarreta played down talk of Alves being set to end his six-year stay at Camp Nou but also stated that the club is still in the market to bring in more new faces.
"Dani Alves is a Barcelona player. He is an extraordinary player and he has trained very well through preseason," Zubizarreta said at a news conference to unveil big-money signing Luis Suarez. "As for other players, we are always working on the transfer market, to try to give the coach as many options as we can in all positions and all competitions.
"But neither I or Jordi Mestre [Barcelona vice president] are going to be mentioning any names. I don't think that would be appropriate."