Serge Ibaka looked like he'd just been shot, as if somewhere high in the Toyota Center stands lurked a sniper, whose scope had been locked squarely on the front of his road blue No. 9 jersey.

After missing the game's most important shot Monday night at Houston, a stick-back attempt from point-blank range, Ibaka whipped his head back, and then his body, and then crumpled to the court.

As he remained on his backside, Ibaka put both arms over his head. He couldn't believe what he had just done.

He had just cost the Thunder the closeout game at Houston.

“It was tough. It was tough,” Ibaka said Tuesday, a day later. “I wanted to try to save my team, and it didn't happen. It was tough for me.”

On the list of Thunder players who didn't deserve to deal with that amount of agony, Ibaka ranked a close second to Kevin Durant.

The Thunder power forward has been the team's second best player in this series. He carried averages of 15.3 points, 9.7 rebounds and 3.7 blocked shots into Game 4. He had been shooting 61.3 percent.

“It was my first time to be in that position, you know?” Ibaka tried to explain.

He continued.

“I didn't sleep last night, man.”

Ibaka's teammates hurried over to help peel Ibaka off the court. Even in the immediate moments that followed the heartbreaking sound of the final horn, the Thunder made it a point to keep Ibaka's spirits' high.

“He felt he had the easy putback, and that was probably the case,” said Thunder coach Scott Brooks. “But it's like I've said many times. You can play 100 possessions and a lot of times it ends up in the last possession and sometimes you think that's the possession that lost the game. But there's so many other possessions.

“That was a scramble play. It wasn't executed the way we wanted it to be. But when you have defenses that are guarding you, you're going to have to do things on the fly and you have to use your intelligence.”