The Football Association will seek to ensure Nicolas Anelka serves his 'quenelle' suspension wherever he goes next.
West Brom have sacked Nicolas Anelka citing "gross misconduct" after the striker claimed on Twitter he had quit the club.
The striker moved to Sardinia on a permanent deal last summer after spending the previous season on loan with the Rossoblu but will now return to Brazil for family reasons.
"After more than two years with the Rossoblu, I leave Sardinia to return to Brazil and play in Santos," he told www.cagliaricalcio.net.
"It's a difficult decision, because I consider the Cagliari an important team with special fans. To them I extend my greetings.
"In Sardinia, I found love, respect, friendship from everyone: from the President Cellino, who always treated me with utmost respect, to team-mates, not to mention the technical staff as well."