PARADISE ISLAND, Bahamas -- Christian James scored 18 points to help Oklahoma earn a matchup with Wisconsin in the semifinals.

Aaron Calixte hit two clinching free throws with 5.0 seconds left for the Sooners (4-0), who led by 11 in the first half and 63-54 with 3:38 left before holding off the Gators' late rally. And Oklahoma helped itself by taking a 48-34 rebounding advantage.

Reserve Dontay Bassett had 14 points for the Gators (2-2), who hit a season-high 11 3-pointers. But Gators had to work awfully hard to find any offensive flow and made 3 of 11 free throws.

"I don't think we're a team with a bunch of swagger right now," Florida coach Mike White said. "I think confidence is a big issue with this team right now. It's something that we've got to get to the bottom of."

Florida will face Stanford in Thursday's consolation bracket.