Thanks to a broken collarbone on a run-of-the-mill sack, the Green Bay Packers are without Aaron Rodgers. Their rivals in the NFC North, the Chicago Bears, are without Jay Cutler thanks to a bum leg, which also wasn't the result of some sort of illegal hit. Game after game, NFL quarterbacks get sacked, get hurt -- and miss starts. Of the 15 games on this week's schedule, nine -- 60 percent -- feature at least one team that has been forced to change its quarterback because of injury this season. One of the two teams with a bye, St. Louis, lost its No. 1 guy, 2010 top overall draft pick Sam Bradford, for the season. Bradford, who tore a ligament in his left knee last month, is one of nine quarterbacks on injured reserve in 2013, the second most through 10 weeks in any of the past 15 seasons, according to STATS. Read more http://espn.go.com/nfl/story/_/id/9977321/nfl-discuss-expanding-rules-protect-quarterbacks