Strongside outside linebacker Paul Kruger had his moments against the Lions and was much more active than his defensive teammates.

Kruger registered three solo tackles and a pass deflection, displaying more agility in pass coverage than he's shown so far during practice sessions. He finished with four tackles.

"I think there are always things to clean up," Kruger said. "I could have had a couple more tackles for a better yard situation. I got a little late on the tackles, but overall I think I played well and was in the right spot."

However, Kruger was also flagged for a late hit on Lions quarterback Matthew Stafford as he delivered a touchdown pass to Titus Young late in the first half.

Kruger acknowledged that his late hit could draw a fine from the league office.

"Yeah, I made a mistake," Kruger said. "He threw it right before I hit him and I don't know. It's one of those things I wish I could go back. I was just too high and tried to take my head down and hit him low on the shoulder, but it was just too high when I got close. It was a big mistake, so hopefully I won't have to pay too much for it.

"I was just trying to be aggressive, trying to get there before he released the ball and trying to get my head down. Like I said, it's just one of those things where you're going to have to learn to start to do more often or else you're going to be paying hefty fines every week."

Kemoeatu starts

Nose guard Ma'ake Kemoeatu started in place of Terrence Cody, perhaps a reward for getting down from his heavyweight status of 400 pounds several months ago.

Kemoeatu recorded two tackles, slamming running back Kevin Smith for a 4-yard loss in the first quarter.

Cody has been dealing with a slight hip injury. He entered the game in the second quarter, but wasn't particularly active as he had one tackle.

Allen struggles

Reserve running back Anthony Allen is proving to be a liability in pass protection.

Allen's suspect blocking allowed blitzing free safety John Wendling to sack quarterback Joe Flacco.

This marks the second week in a row that Allen has allowed a sack. Each time, he appeared to drop his head and failed to make solid contact.

Sergio Kindle suffers stinger, Jah Reid has setback

Ravens backup outside linebacker Sergio Kindle suffered a left shoulder stinger during the second half and didn't return.

"It wasn't good," Kindle said. "I don't know how to grade it, though. There were stinging sensations and pain. I feel better now. I don't think it's serious."

Meanwhile, offensive tackle Jah Reid acknowledged that he had another setback to his strained right calf.

After returning to practice this week, Reid aggravated the injury for the second time. He first got hurt during a June minicamp and was carted off the field.