The former Fair Park High standout from Shreveport, LA, hurt his knee the previous week and was forced to sit out Dallas' first preseason game.
Claiborne played the entire first half.
He made little impact in the box score, but San Diego quarterback Phillip Rivers rarely threw Claiborne's way.
Instead, Rivers threw Brandon Carr's way, and Carr made him pay with two interceptions.
The Chargers rallied to beat the Cowboys 28-20, sending Dallas to 0-2 in the preseason.
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