SPARTANBURG, S.C. (AP) - The Carolina Panthers waived tackle Charles Spencer on Thursday for what coach John Fox calls a "conditioning issue," and re-signed offensive lineman Rueben Riley.
The Panthers claimed Spencer off waivers from Houston two days before players reported to training camp. The former third-round pick hasn't played in the NFL since breaking his leg during his rookie season in 2006.
Spencer had missed several practices for what the team called a sore knee, but Fox said Thursday he was let go because of "conditioning and weight."
Riley spent last season on Carolina's practice squad. He was waived when the team signed Spencer.
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