Real Madrid left-back Marcelo was ruled out of his side's La Liga clash against Deportivo Alaves after it was confirmed he suffered a muscle injury.
The Spanish giants are unsure how long the 32-year-old will be unavailable for as their defensive problems worsen towards the end of the season.
Marcelo played all 90 minutes of Los Blancos' 1-0 victory over Athletic Club on Sunday, but was sent for a scan at the club's medical center on Friday which confirmed the injury.
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"Following the tests carried out today on Marcelo by the Real Madrid Medical Services, he has been diagnosed with an injury to his left adductor muscle," a statement on the club's website read.