The New England Patriots finally found help for their much beleaguered backfield. Remaining free agentsNFC free agency gradesAFC free agency gradesFree agency winners and losersSeven riskiest free-agent signingsRobert Griffin III signs with Cleveland BrownsWesseling: Which franchises are on the rise?Collateral damage: Players hurt by free agencyCollateral benefits: Players aided by free agencyWatch:Under-the-radar free-agent signingsThree teams that lost in free agencyWhich teams made the best
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