Barcelona's Lamine Yamal was injured during Wednesday's Spanish league game against Celta Vigo, moments after scoring a penalty.
Sources indicate Yamal has a suspected torn hamstring. The full extent of the injury and his recovery timeline will be clearer after scans scheduled for Thursday.
Yamal converted Barcelona's first goal in the 40th minute and immediately signaled to the bench that he was injured, appearing to clutch the back of his left leg. He left the field under his own power after receiving medical attention.
The 18-year-old forward is a key player for Barcelona and is expected to debut for Spain in the upcoming World Cup.