One of the familiar faces in the Bears' locker room is a guy he played with in Carolina, and Harris believes Julius Peppers is going to start exciting fans when the Bears open training camp Friday.
"He's just a freak," Harris said Thursday on "The Waddle & Silvy Show" on ESPN 1000. "I played behind him for three years, and some of the stuff he does still amazes me. He jumps up and catches an interception, and runs it back for a touchdown.
"He provides great pressure. He's a guy that can't be blocked one-on-one, in my opinion. He has a high motor, and he's just going to be exciting."
Harris believes Peppers will infuse some life into the Bears' Cover-2 defense, which has become somewhat maligned as the Bears' defense struggled since the Super Bowl.
"The Cover-2 starts up front," Harris said. "You can't have a successful Cover-2 team if you don't have a great pass rush. And I think that's one of the things we'll get this year.
Harris compared the current defense favorably to the Super Bowl defense in at least one regard.
"I think better team speed with this defense now, than when I was here," he said. "That's the biggest difference."