The Bulls limited the Bobcats to 75 points and 33.3 percent shooting Friday night, statistics that flash some defensive teeth.

The Thunder are not the Bobcats.

Sunday night's showdown will be a severe test as the Bulls' defense has faltered against elite opponents lately. The Thunder lead the NBA in points per game (106.7), 3-point percentage (.392) and free-throw percentage (.832) and feature the league's leading scorer in Kevin Durant.

Over the last eight games, the Bulls have allowed the Heat (.507), Spurs (.520), Nuggets (opponent-season-high .581) and Pacers (.527) to shoot higher than 50 percent. The Thunder rank third leaguewide at .483.

"They have a lot of firepower, guys who can spread the court," Joakim Noah said. "Thabo (Sefolosha) is playing at a very high level, shooting very well. Kevin Martin is an unbelievable scorer. And they have two of the best offensive players in Durant and (Russell) Westbrook. They're a hell of a challenge."