Undisclosed injury

I began a new save with Blyth Spartans and I was looking for free players to add in my team. I found Paul Taylor (AMC/FC) and when I tried to bid I saw something strange in his profile. I realised that he was unavailable because of "undisclosed injury" and there was no specific date for his comeback. I don't no what to say... it's the first time I witness something like that. HELP!!!

its usually because in real life they have a medical problem or have been in an accident or something. DIEGO BUONANOTE of river plate, a quality player, was in a car accident last year and so on the game he was the same, was unable to play for about a year.

also some players of Togo or Guinea or Ivory Coast are also like that cuz of accident before world up last year if u remember...

Thanks a lot. Now I Know what is going on with it.