Sergio Aguero was taken to hospital after complaining of dizziness during the first half of Barcelona's 1-1 draw with Alaves on Saturday, interim head coach Sergi Barjuan confirmed.
The Argentine was absent for the first two months of the season as he recovered from a nagging calf injury, finally making his club debut in mid-October against Valencia.
He was in clear discomfort on the pitch before coming off late in the first half against Alaves, later leaving the stadium and going to hospital as a precautionary measure.
Almost 40 minutes were on the clock at Camp Nou when Aguero pulled up in discomfort. The forward was left hurt by a clash in the area and appeared to have trouble breathing, pointing to his chest as he doubled over.
After an assessment from the Barca medical team, he left the game almost in tears with Philippe Coutinho chosen to replace him in the Catalans' line-up.
