Chris Copeland, his wife and another woman were stabbed early Wednesday morning outside a Manhattan nightclub.
Copeland was stabbed in the abdomen, and his wife, Katrine Saltara, was stabbed in the arm and slashed across the breast and backside, according to police.
The Pacers are in New York to play the Knicks on Wednesday night.
"We are aware that Chris Copeland was injured early this morning in New York City," Pacers president of basketball operations Larry Bird said in a statement. "We are still gathering information and will update when we know more. Our thoughts are with Chris and those injured."
The NYPD said the incident occurred just before 4 a.m. outside the 1Oak Club on West 17th Street.
Police say Copeland and his wife were arguing on the street when a group interfered. Police say the argument escalated until one man pulled out a knife. Copeland suffered a knife wound to his left elbow and abdomen.
Thabo Sefolosha and Pero Antic of the Atlanta Hawks also were at the scene and arrested and released for obstructing the crime scene, authorities said.