Rivera isn't likely to generate much interest, but teams needy at the position could do worse. At 25, Rivera has 128 catches for 1,221 yards and nine touchdowns over three seasons. Hardly an imposing blocker, he's a better match for clubs seeking a supporting pass-catcher.
That makes sense after Walford displaced Rivera down the stretch, catching 15 of his 28 passes over the final month of the season. Walford offers tangible size -- he's 6-foot-4 and 254 pounds -- with a juicy mix of blocking and receiving skills.