The Brazilian was targeted by the Old Lady in the summer and the club were thought to be lining up a fresh bid in January.
"I'm not thinking about a transfer," he told Globo TV. "The negotiations with Juventus are water under the bridge.
"I now just need to concentrate on the last five games of the Brazilian championship," he continued.
"I have four years left on my contract with Sao Paulo and if I can't do well here then I can't do well anywhere.
"I know that my form has dipped, but I am ready to work hard in order to improve."