Mike Martz, the former Lions offensive coordinator now with San Francisco, just walked out of the locker room and on to the field. His first order of business? Saying hello to center Andy McCollum.

Martz, who coached McCollum in St. Louis, then made his way to the opposite end of the field and through a procession of more former players. He patted quarterback Jon Kitna on his back, slapped five with center Dominic Raiola, took a picture with a random fan, then got hugs and handshakes from Mike Furrey and Brandon Middleton.

As Martz stood at the 30-yard line with his back to the 49ers end zone watching the Lions go through warmups, Lions defensive coordinator Joe Barry walked over and the two exchanged a quick handshake and hug.

Of course, none of that changes how much he wants to beat the Lions.

Following up on my last post, Redding is active today and should start. The injury of note is rookie middle linebacker Jordon Dizon, who is out with the next injury he suffered in last week's loss to Green Bay. Ryan Nece is the No. 2 middle linebacker if anything happens to Paris Lenon today.