Roma will apparently hold crunch talks with Adriano by the end of the week to discuss his future at the club.
The 29-year-old has played just 241 minutes since his arrival on a free transfer last summer.
Roma have been unimpressed with his attitude notably during a recent spell in Rio de Janeiro.
Adriano was recovering from an arm and shoulder injury but was photographed drinking and didn't show much concern for Roma when Claudio Ranieri resigned last month.
Roma director general Gian Paolo Montali gave the player an ultimatum, demanding that he return to Italy.
He then missed a medical to check up on his injury.
Corinthians and Flamengo are known to share an interest in Adriano, but both are unwilling to spend a lot of money on his signature.