ALLEN PARK, Mich. -- Ndamukong Suh isn't bothered by offensive linemen sometimes taking shots at his knees, attempting to take him out of the game.

Ndamukong Suh said linemen who try to block him at his knees are "just gnats that are in the air that keep going after you and you swat at them. Sometimes you hit them, sometimes you don't." AP Photo/Ross D. Franklin

Nope, the Detroit Lions defensive tackle doesn't consider it an issue.

"It happens all the time. It's not going to stop," Suh said Wednesday. "I look forward to it. Look forward to keep making plays down the field. That's my job. To me, it's just gnats that are in the air that keep going after you and you swat at them.

"Sometimes you hit them, sometimes you don't. Sometimes they run away. Sometimes they come back again. Ultimately, I'm that bee going to find that honey hole. That's what I go and do."

Last Sunday, Arizona Cardinals right guard Paul Fanaika fell right below Suh's knees behind the play. No penalty was called and play went on as usual. For Suh, he's used to this.

"For an offensive lineman to do it, it's legal," Lions coach Jim Schwartz said. "He can't do it from behind but from the front, it's legal. You know, is it less of an injury risk? No. But, you know, it's a legal play as opposed to one that is penalized."

Suh was penalized $100,000 for a low block on Minnesota center John Sullivan in the first week of the season. Suh has appealed the fine. A league source told ESPN.com's Dan Graziano that the hearing will take place on Sept. 24.