2017 rule changes

Officials review rules changes with teams at training camp

Embed from Getty Imageswindow.gie=window.gie||function(c){(gie.q=gie.q||[]).push(c)};gie(function(){gie.widgets.load({id:'ZFBXOekFTAt0Ptnveu2S2w',sig:'zqdIZpoXt4EuesRDeeHpQXsFozV9i0ofY0-Dz9cRQ3E=',w:'594px',h:'396px',items:'614681652',caption: false ,tld:'com',is360: false })}); Reporting from Foxborough, Mass. Game officials have a three-day assignment at each camp to work practices and to review new rules and points of emphasis

Obscure substitution foul is now a warning before 15 yards assessed

In a series of wording changes in the latest edition of the rulebook, an obscure illegal substitution that fell under the category of unsportsmanlike conduct will now be issued following