Porto have reportedly reached an agreement with Real Madrid for the transfer of goalkeeper Iker Casillas.

The 34-year-old has spent his entire career at the club and has helped them to win five league titles and the Champions League twice.

However, his future in Madrid has been shrouded in uncertainty in recent months, due to constant speculation that David de Gea is being lined up to take his place.

According to Marca, Madrid and Porto have reached an agreement for the Spain captain's transfer, with official confirmation of the move expected to come within the next few hours.

It is also believed that Casillas will be given a farewell ceremony by the club at the Santiago Bernabeu on Friday.

Casillas has made 725 appearances for Madrid since making his debut in September 1999.