Bulls coach Vinny Del Negro has refused to address a report that claims vice president John Paxson tried to provoke a fight after a March 30 game at the United Center.

According to the report by Yahoo! Sports, Paxson was angry that Del Negro played center Joakim Noah more than an established time limit as Noah battled plantar fasciitis in his left foot.

"All those things are internal, I have no comment on that," Del Negro said Tuesday night. "Whatever happens is between the organization and myself, and the people involved."