“We couldn't lose this game,” Hartman said. “We're trying to make the (NCAA) tournament. We have to have better fight than they have.”
Between a Valentine's Day loss to Iowa State and Saturday, Oklahoma has lost four of its last six games entering Monday's regular-season finale.
If the Sooners (20-9 overall, 10-7 Big 12) win in Lubbock, they'll clinch the No. 3 seed for the Big 12 Tournament, which begins Friday in Dallas.
With the third seed, Oklahoma wouldn't meet national No. 1 Baylor until Monday's tournament title game.
“It's gonna help definitely,” Kornet said of the bench's improved play. “Especially against Baylor. I feel like we can beat them if we just go out there, make our shots and help any way possible. I believe in us.”