Barcelona defender Eric Abidal is to undergo a liver transplant in the next few weeks.
The 32-year-old French international had surgery to remove a tumour on his liver last March, but recovered in time to play in the Champions League final just two months later.
"Over the coming weeks, the player will undergo a liver transplant," a Barcelona club statement confirmed. "The transplant was an option since the start of his treatment a year ago."
Abidal, who agreed a new one-year deal with Barcelona in January, has been a regular this season, starting 20 league games.
He is now a serious doubt for France's Euro 2012 campaign in Poland and Ukraine, although he was only out for seven weeks following last year's surgery.
He returned to play the final minutes of Barcelona's Champions League semi-final second leg tie with Real Madrid at the start of May.