Kyrie Irving helped off the floor after awkward knee injury early in Mavericks loss to Kings

Kyrie Irving's left knee bent back awkwardly as he tried to go up for a layup, and he had to be helped off the floor.

Kyrie Irving helped off the floor after awkward knee injury early in Mavericks loss to Kings

Kyrie Irving's left knee bent back awkwardly as he tried to go up for a layup, and he had to be helped off the floor.