Here are some Whispers we've been hearing from our sources around the NFL:

• We hear Panthers rookie LB Luke Kuechly has looked very good in pass coverage through the early stages of training camp. Some team observers expected that part of his game would take longer to develop and that he would shine most vs. the run initially, but he appears ready to be disruptive in both areas right off the bat.

• The Bears re-signed Tim Jennings this offseason before going to the free-agent well to add competition for him at left corner. Early signals from training camp indicate that Jennings still has a fairly secure lead in the position battle, though. Former Colt and Falcon Kelvin Hayden, the top competitor for Jennings' job, has not stood out as much as Jennings in practice, we hear, and Hayden is the third corner on the depth chart at this point.

• There have been no signs of a sophomore slump from Buccaneers DE Adrian Clayborn in training camp after his strong first season, we hear. He already is one of the team’s most reliable defenders.

• The rest of the Redskins’ offensive line might be beset by question marks, but the good news is that OLT Trent Williams is displaying his terrific movement skills and appears to our sources to be playing some terrific football early in camp. The team is thrilled with what it has seen from him.

• The Giants are not disappointed with fourth-round TE Adrien Robinson so far, but it’s clear what he is: a project. Although Robinson has the athleticism to factor in as a “move” tight end and could make game-day active rosters as a special-teamer, he is not yet ready for prime time as a receiver — not if the early results in camp are any indication.