Ahmet Bulut has confessed that the Turk’s switch to Camp Nou has been finalised for some time.
Despite the Catalan club serving a transfer ban currently, the Turkey international has penned a deal to move to Camp Nou ahead of next season.
This will mean that Turan cannot play for the Blaugrana until 2016, effective taking a six-month break from football in the meantime.
The gifted playmaker made his intention to leave Atletico Madrid clear earlier this summer, with plenty of substantial clubs linked with a move for the 28-year-old.
However, it appears that their efforts were in vain, as a deal to take Turan to Barcelona was agreed two months ago.
"He underwent his Barcelona medical in Madrid, after a meeting in Ibiza to convince Atletico's owner [Wang Jianlin] and president [Enrique Cerezo] to let him leave for the Camp Nou,” Bulut told Hurriyet.
"Two months ago I called Arda and told him that we had to talk and that it couldn't be over the phone, that we had to see one another in person.
“I told him, 'I have a surprise for you'. When we got together, I made him swear that he wouldn't mention anything at all to anyone, not even his parents. Arda agreed.
"I told him, 'We're going to Barça'. At first Arda couldn't believe it.
“Two weeks later I sent him pictures of a meeting held with Barcelona, which took place in Paris. Everyone thought it was to negotiate with PSG over Demba Ba, but it was to finalise the agreement with Barcelona".
"Arda's dad only found out when we were about to sign the contracts. Barcelona had asked us for the strictest confidentiality.”
Turan has been a mainstay in Diego Simeone’s Atletico team over recent years and a driving force in the Vicente Calderon outfit’s rise back to the pinnacle of Spanish and European football.
The versatile midfielder will give the current European champions another technical player in their attack, with the Turk renowned for his close control, dribbling and clever range of passing.