Quarterback had signed to be backup on Friday. Terry McCormick
Kyle Boller's tenure as a San Diego Charger was a short one - one day as a matter of fact.
Boller signed with the Chargers on Friday after Charlie Whitehurst suffered a knee injury earlier in the week.
But now, he has decided to retire, says Kevin Acee of the San Diego Union-Tribune.
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Terry McCormick covers the Titans for TitanInsider.com
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