The People says Wenger has tested the water to see if the 31-year-old can be lured away from the only club side of his career to Ashburton Grove.
The decision rests with Casillas and Madrid chief Florentino Perez, but won’t be made until the end of the season and may rest on Jose Mourinho’s future.
Casillas has spent 23 years with Real Madrid, 14 of them with the first-team squad. He has also won 143 caps for Spain.
Would Casillas move to Arsenal if they fail to finish in the top four? Give us your shout below...