Serge Ibaka squared up and scrunched down into his defensive stance.

He was off to a good, fundamental start.

Then, in an attempt to shut off the space between himself and Blake Griffin, Ibaka moved in closer.

And closer.

Soon, the Thunder power forward had the top of his head lodged in Griffin's belly, taking the defensive tactic of crowding his man to an unforeseen level.

"I wanted to just try to be more aggressive and don't let him think and don't let him have space," Ibaka said of his peculiar style Tuesday against the Los Angeles Clippers. "So I tried to get near him so he had to make some tough decisions."