Cody Kessler Jersey from panxing18's blog

There’s plenty of uncertainty regarding the new helmet rules. For Washington safety D.J. Swearinger Seth DeValve Jersey , one thing definitely is certain: Head injuries will be traded for leg injuries.

“They want us to, I guess, hit with our shoulder,” Swearinger said, via ESPN.com. “I guess not hit a guy when he ducks. So I guess we just gotta aim for the knees. That’s the only way I know how. If you don’t want me to hit you Cody Kessler Jersey , then I guess it’s the only way, the only way.”

But the new helmet rules have nothing to do with hitting a guy in the head; they prohibit hitting a guy with the helmet, specifically when lowering the helmet and initiating contact. So while Swearinger is right when he says the league wants players to hit with the shoulder, the hit with the shoulder doesn’t have to go low, except when a receiver is still defenseless.

The broader problem is that the officials still don’t seem to know what is and isn’t a violation of either of the two new helmet rules. Which makes it even harder for the players to know what they can and can’t do.

The NFL may not be finished fiddling with kickoffs.

According to Kevin Seifert of ESPN.com Erik Swoope Jersey , the league said there may be additional changes to this year’s new rules about kickoffs, which they’re trying to make safer.

A league spokesman said any additional changes would be “minor,” but the fact they’re still adjusting just before training camp starts is still a bit startling.

The new rules are a significant change, with former referee Terry McAulay calling them “the biggest change I’ve ever seen.” And if the league’s considering adjusting the rule book now (it was just published on June 28), there figures to be confusion among coaches as they try to figure out what to teach players.

“The NFL officiating and football operations staff Kevin Huber Jersey , with competition committee approval, may make some minor tweaks to the language to further clarify the rule,” league spokesman Michael Signora said. “If so, that information would be circulated to all clubs and the rule book updated accordingly.”

The league took steps to change kickoffs to try to curb injuries, routinely describing it as the most dangerous play in the game. And even in the recently published rulebook Cole Beasley Jersey , there were other changes which hadn’t been previously disclosed, including automatic touchbacks if a ball hits the end zone without being touched by a member of the receiving team.