Casillas rumored to be seriously considering his options with the arrival of Keylor Navas at Real Madrid.

With Costa Rica's star goalkeeper, Keylor Navas, set to come on board, Real Madrid will be spoiled for options when it comes to selecting who will feature between the sticks.

Coach Carlo Ancelotti will have to choose between captain Iker Casillas, Diego Lopez, and the aforementioned new signing as the team hope to mount a successful domestic title challenge and be able to retain their Champions League crown.

However, according to Spanish reports, Casillas, who was part of the side that achieved that long awaited 10th Champions League trophy this past May, has grown disillusioned with his position at the club that he has been a part of for his entire career.

English reports, notably Metro, claim that Arsenal is his preferred destination and also corroborate the reports from Spain that the 33-year-old in alleging that the EURO 2012 and 2010 World Cup winner will be pushing for his employers to allow him to leave on a free transfer rather than forcing any club to pay for him, as he is valued at about 9 million.