Real Madrid skipper Sergio Ramos is likely to miss the clash against Barcelona in the La Liga.
The captain sustained an injury in the 1-0 defeat against Cadiz on Saturday at the Alfredo di Stefano Stadium and he was forced off after the half-time having suffered a strong blow to his left knee.
Eder Militao was thrown in to replace the Spanish international as a precautionary move, but there will be an anxious wait as Ramos goes for further tests to determine if there is an issue there.
Real Madrid will take of Shakhtar Donetsk on Wednesday in the Champions League before the clash against their rival Barcelona in the La Liga.
Real Madrid boss Zinedine Zidane was left frustrated, he has now had 14 players who have suffered a physical issue since pre-season.
At the moment, Eden Hazard, Mariano, Martin Odegaard, Dani Carvajal and Alvaro Odriozola are the other names on the club’s medical report.