Eric Abidal has admitted to feeling "annoyed" over the manner in which his departure from Barcelona was handled.
The Frenchman joined the Catalan club from Lyon in 2007, and played a prominent role in the trophy-laden Pep Guardiola era.
However, his career was temporarily interrupted when a tumour on his liver was discovered in 2011, and he was forced to undergo a transplant a year later as a result of complications.
The defender subsequently made a full recovery, and was given five outings toward the end of the 2012-13 season as part of an emotional return to action.
But after failing to earn a new deal with Barcelona, the 33-year-old has spoken of his disappointment, saying: "I don’t understand it. I fought for them and am in great shape.
"The doctor was surprised at my recovery. I feel better than I did two years ago. They didn’t give me any reason and said it was a professional decision.
"Inevitably, it calls into question my ability to continue playing football. I am the first person to judge my fitness and I’m not going to put my life at stake.
"That is why I am a little annoyed with the club’s decision. Either way, that’s football."
