Avril knows he’ll have to be efficient to get to Peyton Manning

Seahawks defensive end Cliff Avril has managed 9.5 total sacks in the 2013 season while splitting time with Chris Clemons.  In the team’s next game, Avril knows it’ll be a challenge to add to that number. Though not mobile nor elusive, Broncos quarterback Peyton Manning avoids sacks by making quick decisions and getting rid of…