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Dave Weaver, Associated Press
Souther Illinois' Jeff Early (22) tries to avoid a loose ball going out of bounds over Creighton's Grant Gibbs (10) during the first half of an NCAA college basketball game, Sunday, Jan. 15, 2012, in Omaha, Neb.

OMAHA, Neb. — Sophomore star Doug McDermott scored 25 points and went over 1,000 for his career, and No. 23 Creighton defeated Southern Illinois 90-71 on Sunday night.

The Bluejays (16-2, 6-1) have won six straight since they opened Missouri Valley Conference play with a home loss to Missouri State. The Salukis (6-12, 3-4) lost to Creighton for the eighth straight time.

Antoine Young added 14 points and six assists and Gregory Echenique had 11 rebounds to go with his nine points.

McDermott also had 11 rebounds and recorded his sixth double-double of the season.

T.J. Lindsay had 13 points, Jeff Early 11 and Mamadou Seck 10 for the Salukis.

The Bluejays shot 55 percent from the field and made 28 of 34 free throws.

The Salukis, down 15 late in the first half, got to 57-53 on Early's 3-pointer with 14:10 left. The Bluejays scored eight of the next 10 points.