Small details remain to be finalized before Arsenal captain Cesc Fabregas can return to boyhood club Barcelona, the Spanish champions' coach Pep Guardiola said on Saturday.

Barcelona players Gerard Pique and Carles Puyol both wrote on Twitter Friday that Fabregas would be joining them at the Camp Nou, and Guardiola was confident the deal would go through.

''He's not here. It's very close but he's not here, there's still small details left to complete,'' Guardiola said. ''He's still (an Arsenal) player, nothing is official yet.

''Maybe the player will be here by the next press conference, maybe not.''

Guardiola said he didn't see Pique or Puyol's comments but what mattered was what sport director Andoni Zubizarreta told him about the transfer.

Barcelona has been trying to land Spain international Fabregas since 2009. The 24-year-old playmaking midfielder left the Catalan club at 16 to join Arsenal, where he went on to become the Gunners youngest ever starter and captain.

But Fabregas has missed out on the most successful period of Barcelona's history under Guardiola as the Spanish champions have won 10 major trophies since he took charge in 2008, including two Champions League trophies and three straight domestic league crowns.

Fabregas will probably miss out on the chance to help Barcelona to an 11th trophy under Guardiola as it prepares for Sunday's first-leg Spanish Supercup match at Real Madrid. The return leg is Wednesday.

Fabregas' arrival would give Barcelona the most envied midfield in European football. But where Fabregas would fit into a starting lineup that already includes players such as Lionel Messi, Xavi Hernandez, Andres Iniesta, David Villa, Pedro Rodriguez and rising talent Thiago Alcantara remains a question mark.

Guardiola was guarded when asked if Barcelona really needed another midfielder in its lineup as Fabregas' transfer fee is reportedly ?40 million ($57 million).

''If he arrives I will answer you,'' Guardiola said. ''But he's not here so I won't.''