AC Milan vice-president Adriano Galliani has hinted that the Serie A club could look to bring Kaka back to the San Siro.
Kaka, 30, has struggled to live up to the £50.7 million transfer fee paid to AC Milan by Real Madrid for his services in 2009.
The Brazilian has regularly been linked with a return to Milan, and this week Madrid assistant Aitor Karanka appeared to indicate that the playmaker's future is uncertain.
"Kaka and the club are working to find a solution that is good for both parties," Karanka said after Kaka was left out of Real's friendly against Oviedo.
Speaking on Wednesday, Galliani told Gazzetta dello Sport: "Some loves never end, they may go away for a long time, but they always return."
Kaka made 17 starts for Real Madrid in La Liga last season, scoring five goals and managing seven assists.