Irving was attempting to play through a facial fracture, an injury that occurred in a pickup game last month. He was wearing a clear mask in an effort to protect his face, but appeared to bump into Lakers guard Rajon Rondo while playing defense just 1:06 into the contest.
Irving's face made contact with Rondo's upper arm. The Nets guard immediately winced in pain, took the mask off and motioned to the bench that he needed a substitute.
It was not immediately clear if Irving would return to the game.
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