AUSTIN, Texas (AP) Thomas Dziagwa and Cameron McGriff each scored 19 points and Oklahoma State ended Texas' late-season surge with an 81-59 win Saturday, delivering a tough blow to Longhorns' chances to make the NCAA Tournament and raising new questions about Shaka Smart's future beyond this season.

The Longhorns appeared to have rescued both with an impressive five-game win streak that included two against ranked opponents. The winning seemed to be turning the conversation on Smart, whose job has been under intense scrutiny after five underachieving seasons.

Then the Longhorns (19-12, 9-9 Big 12) delivered a dud at a critical time as the Cowboys (17-14, 7-11) opened up a 22-point lead by halftime and cruised to an easy victory.