CINCINNATI -- The blood on Carson Palmer's face reflected the state of the Cincinnati Bengals' offense: a nasty, ugly mess.

Photo by Al Behrman / The Associated Press

Saints receiver Robert Meachem (17) catches the ball in front of Cincinnati defender Marvin White early in Saturday's 13-0 win over the Bengals.

The New Orleans Saints sacked Palmer three times in the first half Saturday night, knocking him out of the game with a bloody nose and a cut lip during a 13-0 victory that left the teams heading in opposite directions.

The Bengals have big problems.

They couldn't move the ball or protect their franchise quarterback in the first half. Palmer left the game when Kevin Kaesviharn got to him on a third-down safety blitz with 2 seconds left before halftime.

As he walked to the sideline, Palmer had blood streaming from both nostrils and his lower lip. He dabbed at the wounds with a towel, then draped the bloody towel over his head and walked to the locker room, prematurely done for the night.

With Pro Bowl receivers Chad Johnson and T.J. Houshmandzadeh sidelined by injuries and two of their backups out as well, Palmer had nowhere to go with his passes other than the running backs and tight ends. That made it easy pickings for the Saints, who are trying to sort out their troubled secondary.

Cornerback Mike McKenzie made his first appearance since he tore a knee ligament last December, starting on one side. Second-round draft pick Tracy Porter started at the other cornerback spot, one week after he was repeatedly burned for long passes.

Photo by Al Behrman / The Associated Press

New Orleans linebacker Jonathan Vilma (51) and cornerback Mike McKenzie (34) tackle Cincinnati running back Chris Perry during Saturday night's preseason exhibition game. New Orleans won 13-0.

Neither one had much difficulty against a gutted offense that crossed midfield just once -- and, then, by only 1 yard -- on six possessions in the first half. The Bengals managed all of 94 yards in the half and never advanced farther than the Saints' 47-yard line during the game.

They hadn't been shut out in the preseason since 1999 at Detroit. It was the first time in franchise history they were shut out at home during an exhibition.

The Saints were hoping to get tight end Jeremy Shockey into a game for the first time, but decided to sit him. Shockey, obtained in a trade last month for two draft picks, hasn't played since he broke his left leg Dec. 15.

Running back Reggie Bush left the game in the first half with an undisclosed injury that didn't appear to be serious. He walked to the locker room briskly and didn't return to the game.

The Saints' first-string offense moved the ball smoothly, but couldn't put up many points. Drew Brees was 14-of-22 for 199 yards and one touchdown before leaving late in the first half with a 10-0 lead. He threw a 1-yard touchdown pass to tight end Ronnie Ghent, who beat linebacker Keith Rivers, Cincinnati's first-round pick.

Fans expressed frustration and disbelief over owner Mike Brown's decision to re-sign troubled receiver Chris Henry earlier in the week. The Bengals released him in the offseason after his sixth off-field run-in during his time with the Bengals. Brown brought him back over the strong objection of coach Marvin Lewis.

One banner behind the end zone read: "Hey Mike, Surely You Can't Be Serious." Another hanging from the upper deck read: "Fool Me Once, Shame on You. Fool Me Six Times, Shame on Mike Brown." Both banners were taken down before the end of the first quarter.

Henry did not play, watching from the sideline in a white Bengals T-shirt and black shorts. He has to sit out the first four regular-season games, his latest suspension from the NFL for violating its conduct policy.

(Copyright 2008 by The Associated Press. All Rights Reserved.)