The Charlotte Bobcats are increasingly motivated to trade Ben Gordon before the Feb. 21 deadline.
Gordon refused to stop bouncing a ball as Mike Dunlap spoke during Monday's shootaround.
Gordon began baiting Dunlap, telling him that he needed to "humble himself," sources said.
Bobcats general manager Rod Higgins was in the practice session and ultimately intervened, sources said.
"Beyond disrespectful," was how one league source described the scene.
The Bobcats decided not to suspend Gordon for the incident, believing it would hurt his trade value.
Gordon is owed $13.2 million for the 13-14 NBA season.