Iker Casillas lost his place in the Real Madrid starting line-up last season. [Reuters]

Real Madrid goalkeeper Iker Casillas is considering leaving La Liga next summer and according to reports his preferred destination is Arsenal, rather than Manchester City.

Casillas is considered one of the best keepers in the world but he lost his place in the starting line-up last season, under Jose Mourinho, and this year is still second choice for new manager Carlo Ancelotti.

Spanish online newspaper El Confidencial claims that Casillas is upset about his situation at Santiago Bernabeu and in private conversations he admitted that he would like to quit the Spanish giants and move to Arsenal next summer.

According to the reports the keeper was already considering an exit from Real Madrid last season, after Diego Lopez became Jose Mourinho's number one, and the idea is once again lodged in his head.

The 32-year-old keeper is only playing in the Champions League and Copa del Rey, while Diego Lopez is the Real Madrid number one in La Liga, and Spain's most capped player of all time believes that this is not enough.

El Confidencial adds that Arsene Wenger has been trying to sign a goalkeeper for a while and he has been monitoring Casillas's situation recently. The reports claim that Wenger does not trust completely in Wojciech Szczesny due to his erratic form and believes Casillas would add a lot of quality to the squad.

Casillas likes the Premier League and a key reason for his preference for Arsenal is the chance to reunite with former Real Madrid playmaker Mesut Ozil in London, along with two Spanish friends in Santi Cazorla and Nacho Monreal.

Spanish reports also claim Manchester City are interested in securing Casillas' services to solve their problems between the sticks, after Joe Hart's prolonged spell of poor form. However, it looks like Casillas would rather a move to London, despite the huge salary on offer at City.