The Bulls welcomed a 14-3 San Antonio Spurs team that was leading the league in defensive efficiency, so you had to figure that this wouldn't be the game where the Bulls would find their offensive potency. And they didn't, in fact for much of the game they didn't look very good at all. But it didn't matter because their own defense was the difference in another big win against a Western Conference opponent.
The Bulls didn't score a field goal in the final six and a half minutes, but hit 7-10 from the line in that stretch (they were 5-10 before then) to do just enough in a 3 point victory.