Bargnani has served as the Knicks big men while Tyson Chandler and Amare Stoudemire have come and gone in the lineup with injury problems.
At 2:40 in the third quarter, Bargnani drove to the basket and attempted a dunk. He was fouled on the play and broke his fall with his left hand, which resulted in the left elbow injury.
Bargnani is the latest Knicks player to be hurt in an injury-plagued season. Chandler, Stoudemire, Raymond Felton and Pablo Prigioni are all rotation players who have been knocked out for injury.