Sao Paulo president Carlos Miguel Aidar has told ESPN Brasil it is almost certain Kaka will return to the Brazilian club on loan this summer ahead of his expected MLS switch in 2015.
Sources close to the AC Milan midfielder told ESPN.com.br on Thursday that the 32-year-old has already reached an agreement with Orlando City but, as the club will not play in the MLS until March next year, he is expected to join Sao Paulo in the interim.
ESPN.com.br contacted Aidar for confirmation and he said: "I can't speak, I'm at Itaquera [for Uruguay's World Cup clash with England], but the deal is very close."
The two clubs are said to have a good relationship and, while it appears Orlando City may have to subsidise the Brazilian's wages during his time in Brazil if the loan is to proceed, an agreement between the player and Sao Paulo is in place and the deal now appears inevitable.
He is due to join Sao Paulo until the end of 2014 before linking up with the MLS side.
Earlier this month, Sao Paulo coach Muricy Ramalho told ESPN: "He's a fantastic player, but it's very difficult because the financial aspect counts a lot. Clubs here are in [financial] difficulty and that's weighing us down, but we have seen many times in football that impossible things do actually happen, so maybe that will also happen with Kaka."
Kaka returned to Milan last year after a spell with Real Madrid but, with the Rossoneri failing to qualify for the 2014-15 Champions League, he has the option to terminate his contract and walk away from the Serie A club.