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Ross D. Franklin, Associated Press
Arizona Cardinals' Clark Haggans (53) sacks Denver Broncos' Kyle Orton (8) in the first quarter of an NFL football game Sunday, Dec. 12, 2010, in Glendale, Ariz.

ENGLEWOOD, Colo. — Denver Broncos interim coach Eric Studesville says he's sticking with slumping quarterback Kyle Orton as his starter.

Studesville left the door open just a crack to the possibility that first-round draft pick Tim Tebow could get more action with the Broncos (3-10) heading for what could be their worst season since 1964.

But he said he's already decided that Orton will remain the starter next weekend at Oakland.

Orton threw three interceptions in the Broncos' 43-13 loss at Arizona on Sunday. Over his last two games, he's gone from a prolific passer to a pedestrian one with no touchdown throws and paltry passer ratings that have fans calling for Tebow to take over.