The Brazilian played at Stamford Bridge from 2010 to 2016, winning a Champions League along the way, before signing for Jiangsu Suning in the Chinese Super League.
However, the 30-year-old has reportedly agreed to return to Europe and Serie A giants Inter are open to sign him once the winter transfer window opens.
Chinese consortium Suning Holdings Group hold a majority stake at Inter following a takeover in 2016, and their options of landing the Brazilian could be boosted by the fact that their sister company, Suning Appliance Group, are the owners of Jiangsu.
The former Chelsea man could join the San Siro outfit on loan once the Chinese Super League ends.