Willian has begun training with Fulham.
The former Arsenal and Chelsea midfielder has been released from his contract at Corinthians.
The Cottagers have yet to offer the 34-year-old a contract and are keeping the arrangement casual as the Brazil international awaits offers on a free transfer.
Willian left his home country after his family grew unsettled and sought a return to Europe, where he has spent most of his adult life.
The London Evening Standard says Fulham manager Marco Silva saw an opportunity to bring in an international player to help lift the level of his training sessions as he awaits further signings.