CINCINNATI -- Vontaze Burfict picked off Andy Dalton and gleefully ran it back toward the end zone, whooping and hollering all the way. Earlier, Dre Kirkpatrick had done the same, returning Dalton's pass for a touchdown and celebrating by pretending to throw the football into a basketball hoop.

It was no wonder they were so gleeful. The Cincinnati Bengals defense won the day, and it wasn't even close.

In just 10 plays on the first series of team drills, Dalton appeared to be sacked five times before throwing the interception. The defense was working on blitzes at the time, and the pressure was coming from all sides.

Burfict, Vincent Rey, Shawn Williams and Clayton Fejedelem all got in on the pressure. The offense also got called for a false start.

The torture continued for much of practice. All of the quarterbacks were forced to get the ball out quickly or have a defender in their faces. At one point, Dalton threw his hand up to protect his face, with defenders all over.

Rookie Jordan Willis also had two sacks in the next set of team drills, and there was a fumbled snap by AJ McCarron.

Whatever the reason, the offense just didn't have it on Monday. At one point, Marvin Lewis huddled up the entire team to lecture his players on being less sloppy.

It was probably the worst performance by the offense during training camp.

Plays of the day: Almost every defensive play. ... Geno Atkins and Michael Johnson combined to stop Joe Mixon for a loss in the backfield. ... William Jackson may have had a PBU on a long pass from McCarron to John Ross, but Ross said he thinks it was a drop. ... Jordan Willis beat Landon Lechler to pressure McCarron into scrambling.

Injury report: Cody Core, who has been using crutches, did not practice. ... Cedric Peerman returned to practice. ... Brandon Wilson, CJ Uzomah, KeiVarae Russell and George Iloka did not practice. ... Andre Smith practiced with a brace on his arm. ... Carl Lawson was limited in practice. ... Tra Carson left early and sat in a cart with ice on his ankle.

Kicking competition: Randy Bullock was good from 38, 44 and 45 yards, missing from 48. Jake Elliott was good from 38, 48 (after two tries), 44 and 45 yards, missing his first attempt from 48. The two have been neck and neck all camp.

O-line shuffle: Andre Smith worked with the second team at right tackle, while Trey Hopkins worked with the first team at right guard. Although Smith entered camp as the first-team right guard, Hopkins has worked there often and started there in the first game.