With each injury and each loss, the Bulls’ level of frustration has been building over the last two weeks.

But after a 108-95 loss to the Miami Heat Friday night, the Bulls said their late-game eruption –three technical fouls and an ejection for guard Kirk Hinrich — had more to do with perceived injustices in that game than their losing streak being extended to seven games.

”I have to look at the film, but I just thought we were getting hit a little bit during the game,” said Bulls coach Vinny Del Negro, who was assessed a technical in the third quarter. ‘‘But talking about the referees doesn’t get you very far. I just saw things a little differently than they were and you have to voice your opinion.”

”But you have to do the talking on the court. You have to make the plays and [the Heat] made more plays than us.”