Adan left Real this week after having his contract cancelled by mutual consent.
He told la Sexta: "When Iker got injured, I was deprived of the right to play for Real Madrid. The press disrespected me.
"I trained normally, without knowing anything about Diego Lopez. I learned of his signing through the media.
"I would have loved for [Jose] Mourinho to have explained that signing. When Iker was injured, I could have come in as I had already proven myself.
"I had many ups and downs and there were hard times because they told me and I was prepared psychologically."
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