At a largely ceremonial event at the Sukru Saracoglu stadium on the city's Asian side, Carlos, flanked by members of the Fenerbahce board, signed the deal for the cameras, clad in the Istanbul club's navy and gold strip.

"I am very proud to be wearing this strip," the 34-year-old said through a translator. "My dream is to win the UEFA Cup in this strip."

"Fenerbahce are the greatest, Fenerbahce are the champions," he said in Turkish as fans shouted "I love you Carlos."

Fenerbahce have not disclosed the duration or value of the contract, but Turkish newspapers reported that the club will pay Carlos four millions euros (5.3 million dollars) a year for two years and he will be eligible for bonuses totalling an additional one million euros (1.3 million dollars) a year.

Carlos will join four other Brazilian players at Fenerbahce which Brazilian football legend Zico has been coaching since 2006.

Fenerbahce began chasing Carlos last year, but the former international decided to stay on with Spanish giants Real Madrid until the end of his contract.

During his tenure with Real, Roberto Carlos won three Champions League titles (1998, 2000 and 2002) and three Spanish league titles (1997, 2001 and 2003).

Fenerbahce crowned their centenary year this season with their 17th league title, but departed early from the Champions League.