Real Madrid legend Iker Casillas is being linked with AC Milan.

The Porto goalkeeper comes off contract at the end of this month and his future remains undecided.

Casillas has offers from China and MLS, but his first option is to continue his career in Europe.

And Don Balon says Milan has emerged as an option - ironically thanks to Real's interest in Gigio Donnarumma.

Should Milan's confirmed plans to sell Donnarumma eventuate, Casillas could immediately arrive as a replacement for the teenager.