The former Barcelona, Everton, Watford and AC Milam star has struggled with injury for the past year.
Deulofeu said on Jijantes: "I can't do what I like and I've been out for more than a year now. I'm happy to have achieved a balance off the field at a family level, which helped me stay focused otherwise I could have fallen into depression."
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On the injury and recovery time he added: "I can't talk much because we have an agreement with the club. It's a real ordeal and you can't imagine what I'm going through. I'm trying to recover in every way, but I've accepted the idea that I may never recover.
"For several months I have known that I may never play again. I am preparing for what could come next, because the footballer's career ends in an instant."