BEREA, Ohio — Johnny Manziel will start the Cleveland Browns’ exhibition opener on the sideline.

Coach Mike Pettine chose Brian Hoyer as the starting quarterback for Saturday’s game in Detroit, giving Hoyer the first chance to impress before Manziel takes the field.

Pettine said the decision to start Hoyer over Manziel was based on Hoyer’s performance in training camp.

“That was his job,” Pettine said. “He was the one coming into it. We did want to mix the groups up coming into it, as we did, but he’s done nothing to have that taken away from him, so he’ll be out there with the starters.”

SEAHAWKS: Coach Pete Carroll wouldn’t give specifics but said that his starters would play some minutes in Thursday night’s preseason opener against Denver.

Carroll said after a walkthrough practice that he wants his starters to get a little time but the bulk of the game will be played by younger players. Carroll specifically said rookie linebacker Kevin Pierre-Louis (oblique) won’t play.

CARDINALS: Tight end Jake Ballard announced his retirement.

In a statement, Ballard traced his decision to the severe knee injury he sustained playing for the New York Giants in the 2012 Super Bowl.

JAGUARS: Mike Brown, a second-year receiver, left training camp practice with tightness in his right hamstring.

Although the initial diagnosis sounds minor, it’s the same thing first reported with receiver Cecil Shorts III (hamstring) and running back Toby Gerhart (hip). Shorts has missed nearly two weeks and Gerhart sat out the last five practices. Both have been ruled out for Friday’s preseason opener against Tampa Bay.

DOLPHINS: Running back Knowshon Moreno was activated after recovering from a left knee injury that forced him to miss the first 12 days of training camp.

Moreno came off the physically unable to perform list and joined the competition for a starting job.

SAINTS: After being hospitalized for difficulty breathing and dehydration twice in the past two weeks, the owner, Tom Benson, left training camp in West Virginia early.

A team spokesman said Benson, 87, is doing well and returned to work at team offices in suburban New Orleans.

DONOVAN MCNABB, a retired quarterback, will call some NFL games for Fox this season.

McNabb will rotate with a former NFL and Notre Dame quarterback, Brady Quinn, and a longtime linebacker, Kirk Morrison, as a color commentator alongside the play-by-play announcer, Dick Stockton.

TITANS: Tennessee waived quarterback Tyler Wilson and agreed to terms with two players, including tight end Chase Coffman.

Wilson was signed last December but the Titans traded up in the sixth round to draft Zach Mettenberger of LSU to help back up Jake Locker and Charlie Whitehurst.