The young star could miss the match with Celta Vigo due to bacteria in a leg muscle, leaving Diego Simeone short of options at the back
Atletico Madrid have announced that defender Jose Maria Gimenez is suffering from a muscle infection.
The Uruguay international has been forced to sit out the last two training sessions and is undergoing a course of antibiotic treatment.
The 22-year-old is therefore a major doubt for Sunday's La Liga clash with Celta Vigo at the Vicente Calderon.
"Jose Maria Gimenez could not train with his team-mates in the last two sessions due to 'an infection in the subcutaneous cellular tissue of the right leg, which does not affect joints nor other structures'," Atletico said in a statement.