AS says he wants a top goalkeeper to rival first-choice Wojciech Szczesny for his starting spot between the sticks.
And Wenger is eyeing World Cup winner Casillas as the man to do just that.
After leading Real to a 10th Champions League title last month, there have been suggestions Casillas may quit the capital club to pursue a new challenge elsewhere.
Wenger may call on his Spain pal Santi Cazorla and former team-mate Mesut Ozil in order to help persuade the goalkeeper into making a switch to the Emirates Stadium.
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