NEW YORK — Indiana Pacers forward Chris Copeland, his wife and another woman were stabbed outside a Manhattan nightclub early Wednesday following an argument on the street near a Chelsea club that also led to the arrest of two Atlanta Hawks players, authorities said. The violence broke out just before 4 a.m. Wednesday outside 1Oak Club, a trendy Chelsea spot where celebs like Justin Beiber and Snoop Dogg mingle with Manhattan partygoers. Police say the couple was arguing on the street as the attacker eavesdropped, and started to interfere.