Recommendation: Knox was the top receiver for Chicago not long ago, but a vertebrae injury in 2011 potentially left some long-term damage on Knox's medical evaluation. It's not clear whether Knox is in the sort of shape necessary to help another team, but when healthy there's no doubt he's a major big-play threat and a viable kick returner. Knox caught 51 passes for 960 yards and five touchdowns in 2010.
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