The main starter for the Chargers at left guard last year, Tyronne Green, is an unsigned free agent. Right guard Louis Vasquez signed with the Broncos. Back after missing his rookie season with a pre-draft injury is Johnnie Troutman. In free agency, Tom Telesco signed two guards, Chad Rinehart and Rich Ohrnberger, who've each averaged fewer than six starts per season in four-year NFL careers.
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