Raiders QB Campbell leaves game with injury
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OAKLAND, Calif. (AP)—Oakland Raiders quarterback Jason Campbell(notes) has left an exhibition game after being injured on a sack.

Campbell landed hard on his right shoulder after being sacked by San Francisco linebacker Travis LaBoy(notes) on Saturday night. He was diagnosed with a stinger.

Campbell was down on the ground for about five minutes before being carted off the field.

LaBoy beat left tackle Mario Henderson(notes) on the play.

Campbell was 6-for-8 for 93 yards before leaving the game.

Bruce Gradkowski(notes) replaced Campbell to make his first appearance of the preseason.