NASHVILLE, Tenn. -- A daily review of the hot topics coming out of Tennessee Titans training camp:

• Receivers coach Shawn Jefferson is 45 and last played in 2003. That didn’t stop him from putting on pads and banging into his receivers for a blocking drill on Tuesday. They absolutely loved it, and two knocked him on his butt. More to come on that in a separate post.

• Receiver Michael Preston was on the ground after a collision with cornerback Winston Wright. He eventually got back on his feet but was later being checked out for a concussion. Receivers were going against defensive backs, looking to make room for a guy carrying the ball behind them. It amounted to a skill-position Oklahoma drill, though, Ken Whisenhunt didn’t jump on board with that characterization.

• I watched some one-on-ones between offensive line and defensive line. I saw bigger named defensive linemen largely having their way with lesser offensive linemen. While Jeff Adams had one snap where he was able to steer Jurrell Casey, Casey told me he was working purely on speed stuff to get around the edge. Mike Martin beat Tyler Horn, Karl Klug won against Kevin Danser, Lavar Edwards bulled Justin McCray backwards, DaQuan Jones gained ground on Gabe Ikard. I also thought linebacker Patrick Bailey beat Michael Oher.

• Dexter McCluster didn’t get popped as much today as he did in the first padded practice, but he took at least one good shot. Casey knocked him off his feet at the end of a run on the first nine-on-seven period snap. Shonn Greene had the day off, so McCluster was first, Bishop Sankey was second, Leon Washington was third and Antonio Andrews was fourth. Sankey and Leon Washington both lost fumbles, but Washington’s looked to be the fault of quarterback Tyler Wilson. Mike Martin recovered the first and David Gilbert the second.

• There was a stretch where I felt like both lines were jumpy and false starts or offside could have been called.

• During some periods they were not involved in, Bernard Pollard and Wesley Woodyard did some running together on the side.

• Michael Griffin and Justin Hunter had a lively scrap that turned into a big pushing match with a lot of players involved but it was not a big deal. They kidded about it in the locker room after. Told that Hunter made reference to his stature, Griffin searched him out in the locker room to see how they measured up. (Photo here.)

• Fullback Collin Mooney had to reach for it but dropped the first pass I can remember thrown his way in four days of work.

• Casey burst through and “sacked” Locker on the first play of the final team period.

• Passes of note in red zone work: Cornerback Micah Pellerin knocked away a ball intended for Derel Walker and thrown by Tyler Wilson; Charlie Whitehurst threw a dart to Derek Hagan between George Wilson and Daimion Stafford at the goalpost; Locker found an opening on a similar play but the ball went through the hands of Dorin Dickerson; Akeem Ayers dropped an interception of a Locker pass intended for Nate Washington; Whitehurst placed a nice pass to Brian Robiskie over Micah Pellerin.