A former New York Knicks forward who now plays for the Indiana Pacers was stabbed in the abdomen during an argument early Wednesday outside a club in Manhattan, the authorities said.

The player, identified by Pacers officials as Chris Copeland, 31, was taken to Bellevue Hospital Center. The injury was not considered life-threatening, the police said.

A companion of Mr. Copeland, Katrine Saltara, 28, was cut on the right arm and breast, and was also taken to Bellevue. A second woman, Catherine Somani, 23, an acquaintance of the attacker, was also slashed and was taken to Lenox Hill Hospital. Mr. Copeland and Ms. Saltara were in stable condition on Wednesday night. Ms. Somani was released.

Shevoy Bleary-Murdock, 22, was arrested and charged with felony assault and criminal possession of a weapon. Officers recovered a spring-operated knife outside the club, 1 Oak, on West 17th Street in Chelsea, the police said.