Giannis Antetokounmpo hyperextended his left knee during the third quarter of the Milwaukee Bucks' Game 4 loss to the Atlanta Hawks. 

Antetokounmpo was on the floor for several minutes in obvious pain when he landed awkwardly with his knee buckling.

Antetokounmpo was helped to his feet by his brother and teammate, Thanasis.

Antetokounmpo will undergo further imaging of the knee on Wednesday.