In the wake of new rules regarding hits to the head, Steelers linebacker James Harrison said he might have to give up playing football during an interview with Fox Sports Radio.

Harrison was fined $75,000 for a hit against Browns receiver Mohamed Massaquoi during the Steelers' Week 6 game. Massaquoi sustained a concussion on the play. Harrison also delivered a shot to Cleveland return specialist Joshua Cribbs that resulted in a concussion, but that play was not part of the NFL's fine and review.

"I'm going to sit down and have a serious conversation with my coach tomorrow and see if I can actually play by NFL rules and still be effective," Harrison said. "If not, I may have to give up playing football.

"I really truly hope it's something that can be done, but the way that things were being explained to me today and the reasoning for it, I don't feel I can continue to play and be effective and, like I say, not have to worry about injuring someone else or risking injury to myself."

Harrison, the 2008 AP NFL Defensive Player of the Year, previously said that he did not intend to make players miss actual playing time, but he did want to hurt them.

"I don't want to injure anybody," Harrison said following. "There's a big difference between being hurt and being injured. You get hurt, you shake it off and come back the next series or the next game. I try to hurt people."

Harrison's fine on Tuesday was not his first from the NFL. He drew a $5,000 penalty for slamming Tennessee quarterback Vince Young to the turf Sept. 19, a play that also wasn't penalized. Harrison also was fined $5,000 last season for unnecessary roughness following a late hit on Bengals tackle Andrew Whitworth. In 2008, he drew a $20,000 fine for criticizing a roughing-the-passer penalty against him.

The Steelers face the Dolphins in Week 7.