NORMAN, Okla. -- Cameron Clark broke out of his slump.
Tyler Neal provided some scoring.
Steven Pledger and Romero Osby did their part, too.
Everything set up perfectly for the Sooners Tuesday night against Texas.
So, how exactly did the Sooners manage to lose?
Despite surprising performances from surprising sources, OU came undone after a series of turnovers and a handful of J'Covan Brown 3-pointers in the second half and ended up falling to Texas 69-58 at Lloyd Noble Center.
"A tough start to the second half," coach Lon Kruger said.
Clark was great in the first half with 11 points. He finished with 13 and Neal had his best game since hitting four 3-pointers and scoring 18 points against Arkansas back in December.
Too bad it came in a losing effort.
That's because the Sooners turned it over four times in the first seven minutes of the second half and missed five of their first six shots after the break. OU's five-point halftime lead was gone in 2:36.
From there, Brown -- the Big 12's leading scorer -- burned OU with three consecutive 3-pointers in a 2:14 span and Texas' lead went from one to eight. He finished with 19 points.
"We played with a little less energy the rest of the way," Kruger said after the early second-half turnovers. "We have to avoid the easy buckets going the other way and take care of the ball."
OU had 13 turnovers for the game, 10 in the second half and the Longhorns wound up scoring 21 points off of those OU miscues.
"No discredit to them," guard Sam Grooms said of OU's turnovers, "but I don't think it was them. It was being careless with the basketball. We tried to do things we really shouldn't be doing. It's something we've got to get out of."
The Sooners held the Longhorns to 33 percent shooting in the first half, including just 1-of-10 from the 3-point line. Brown was 2-of-8 from the field, thanks to a zone defense that seemed to confuse Texas.
"They got us out of rythym and we didn't pick it up like we needed to," Texas coach Rick Barnes said.
Meanwhile, Clark was 5-of-7 from the field in the first 20 minutes and Neal made a pair of 3-pointers, helping offset Andrew Fitzgerald who got in early foul trouble.
Clark's 13 points were the most he's had in 16 games. He finished 6-of-9 from the field. Clark hadn't made six shots in a game since Dec. 17.
"It was great to see Cam get off to a good start and see Tyler hitting some shots," Kruger said.
But the second half was an issue for Oklahoma. Texas shot 45.5 percent and made 17-of-18 free throws while OU got to the line just twice.
"Sometimes we let things build on us instead of attacking," Osby said. "We dwell on one thing, and we've got to get tougher mentally. I don't have an explanation for it."
Texas outscored OU 24-5 from the free throw line, but really it was the 10 turnovers after the break that hurt.
"Not just turnovers, but layups going the other way," Kruger said. "You can't give them easy looks."
The loss puts OU's losing streak at five and drops the Sooners to 13-12 and 3-10 in the conference. Grooms didn't score, but had a career-high-tying 10 assists and just three turnovers. Clark had seven rebounds to go with his 13 points and Pledger did his part by scoring 18 points.
"You're 10-2 and you think you're one of the best teams in the country," Grooms said of OU's start to the season. "And you get hit in the face in conference. You have to get better. Three and 10 is a shocker."