Since the trade of Jeff Green for Kendrick Perkins, Serge Ibaka just keeps getting better.

Ibaka has become a consistent game-changer for the Thunder since replacing Green as the starting power forward. In 12 games since the four-player trade with Boston, Ibaka has averaged 9.6 points, 9.3 rebounds and 3.66 blocks in just 29.8 minutes.

Ibaka's impact, meanwhile, has been remarkable. With Ibaka, the Thunder's defense hasn't just been different. It's been downright dominant.

The Thunder has given up just 95.3 points per game since the trade. OKC has held teams to 90 points or less in six of the 12 games, and opponents have shot just 43.5 percent over the past 12 games. The Thunder also has blocked 6.5 shots since the All-Star break, including a league-leading 7.5 rejections in the last 10 games. (Ibaka's 4.1 rejections over that span lead the league.)

By comparison, Oklahoma City's pre-All-Star defense allowed 101.1 points, gave up 46 percent shooting and blocked 5.6 shots per night.