Everyone associated with Oklahoma is getting used to seeing this from Ryan Spangler.

It didn't take long for TCU to figure out what it was in for with Spangler on Wednesday night.

The sophomore forward had 13 points — all in the second half — and 16 rebounds as the No. 25 Sooners needed everything from Spangler in a 77-69 win in front of an estimated 4,684 at the Lloyd Noble Center on Wednesday night.

“Spangler's special just in terms of the little things he does for them are the big things to win games — a crucial rebound here, a crucial pass here,” TCU coach Trent Johnson said.

Spangler did all of those things against the Horned Frogs, with 11 rebounds in the first half to help the Sooners take a slight lead into the break. He then turned it on offensively after half, including delivering the dagger — a 3-pointer at the shot-clock buzzer with 33 seconds left — to give the Sooners their second consecutive win.

“He's all about team. If he can score and help, that's great,” Sooners coach Lon Kruger said. “He had 11 boards at halftime and in a big second half, he did a terrific job. He kept some balls alive in addition to the 16 that he got. He's been like that. He's just been fantastic every night out.”

Spangler's double-double was his eighth — best in the Big 12.

Buddy Hield led the Sooners with 16 points, and Cam Clark added 15.

Kyan Anderson led TCU with 23 points.

The Sooners (15-4, 4-2 Big 12) play at Texas Tech on Saturday. TCU fell to 9-9 and 0-6.

The game was much closer than many expected. After starting Big 12 play with a gauntlet that included most of the top teams in the league, the Sooners faced a TCU team that hadn't won a league game on the road since joining the conference before last season. The Horned Frogs had lost their first five conference games this season by an average of more than 18 points per game.

“They come in with their record and our guys are going to hear it; they know it; they talk about it,” Kruger said. “I know nothing intentional by any means. There's always that human nature element that you have to fight off.

“The energy level wasn't bad, we just didn't quite have that rhythm.”