Real Madrid midfielder Isco is being assessed by the club as he struggles with back and neck pain.
The Spaniard wasn't in the Real squad for the 3-1 victory away to rivals Atletico Madrid on Saturday, and the club have now released a statement regarding the situation.
The statement on Real's official website read: "After the tests carried out today by the Real Madrid Sanitas Medical Services on our player Isco, his back and neck pain has been diagnosed as acute dorsalgia and cervicalgia. His recovery will continue to be assessed."
Isco suffered the injury during a training session, and, while it remains to be seen how long he will be out for, this is the latest setback in what has been a hugely frustrating season for the 26-year-old.
Despite being able to operate effectively as a midfielder or a winger, Isco has been named in the starting line-up for just five of Real's 23 La Liga fixtures so far this campaign.
During his time at Real Isco has won an array of trophies, including four Champions Leagues and the La Liga title.
However, despite the fact that his contract runs until the summer of 2022, it wouldn't be surprising if Isco was to consider his future at the club at the end of the campaign if he continues to struggle for regular playing time.
Real are currently in second place in La Liga, five points adrift of leaders Barcelona, who have played a game less.
They are in Champions League action on Wednesday when they face Ajax away in the first leg of their last-16 tie.