Coach Tom Cable is expected to announce the starter officially when he addresses the media after practice Wednesday. Gradkowski replaced Jason Campbell at halftime last week, rallying the Raiders to a 16-14 win over St. Louis.
Cable did not announce his starter Monday. But Gradkowski was working with the first team offense during the portion of practice open to the media, while Campbell was watching without a helmet.
Earlier, offensive coordinator Hue Jackson says he went to Cable at halftime to suggest the switch. Jackson says owner Al Davis has given him "great latitude" to run the offense.
Copyright 2010 by The Associated Press
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