None of those. They were all Packer draft picks. The guy I'm thinking of was signed very late in his career as an injury replacement. I know Meredith came back for a few weeks, but he is still young.
Do you remember who it was yet? There's another guy I remember, Irish name, ex-Patriot or Bill? Long time vet signed as an FA but hurt in camp and sued the Packers IIRC. Don't think he played a regular season down.
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Imagine for a moment a world without hypothetical situations...