The Cleveland Browns have turned down an invitation to be featured on Hard Knocks.
HBO wanted to feature the Browns, especially first-round quarterback Johnny Manziel.
However, coach Mike Pettine wasn't interested in participating.
"It was for the same reason we didn't feel super comfortable having a camera in the draft room," Pettine said. "Let's get through the first time, let's get through the first year."
Pettine was with the New York Jets when HBO had the Jets on and Rex Ryan was a star attraction.
"There are positives and negatives to doing it," Pettine said. "It's not something I would say we'd never do, partly because the league can make us do it."
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Aaron Wilson covers the Ravens for The Baltimore Sun
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