Johnny Manziel settled down to business as a quarterback in the NFL this week, agreeing to terms on a rookie contract while even drawing the praise of Aaron Rodgers for how the Heisman winner has handled himself.

But at least one Cleveland Browns teammate thinks Manziel should continue to heed caution in his approach to life off the field.

Cornerback Joe Haden, speaking Friday during a radio interview on "The Really Big Show" on ESPN Cleveland, said he thinks "Johnny needs to check his friends a little bit."

"Everybody is going to go out and have a good time," the four-year veteran said. "You gotta make sure when you're with your people, it just doesn't get out. He's going to have a good time, but a lot of things need to be taken away.

"You need to have a phone valet -- tell your friends to put your phones away. We're going to go out but don't record."

Rodgers said Monday that he thinks Manziel has kept the right attitude and has had chances to do "some pretty cool things" but at the same time "can't control the people taking pictures of him ... the people wanting to be around him."

However, Haden said that's where "Johnny Football" should place more focus.