Ousmane Dembele will have tests to determine the severity of his sprained left ankle after sustaining the injury in Barcelona's 3-1 win over Leganes on Sunday.
Dembele was the star of the show until being forced off in the 69th minute, after a tangle with Leganes' Mikel Vesga, and Barca announced on their official Twitter account that he will undergo evaluation on Monday.
The France international had dazzled in the first half and opened the scoring with a deserved goal, turning in from 12 yards after collecting Jordi Alba's pinpoint cut-back.
But he suffered the innocuous-looking injury with just under 30 minutes to go – soon after Leganes equalised – and was unable to continue, with Malcom replacing him.