Cliff Avril leaves Super Bowl 49 with possible concussion, will not return
Seahawks' Cliff Avril honors the memory of his dad - ESPN - Seattle Seahawks Blog- ESPN
Will Seahawks Pass Rushers Actually Get Sacks in 2020? - 750 The Game
Seattle Seahawks' free agency patience pays off with pass-rush bonanza - ESPN - Seattle Seahawks Blog- ESPN
Coming off best season, Seahawks' Avril to face former team – The Oakland Press
Happy 30th Birthday, Seahawks DE Cliff Avril
Cliff Avril Crashes Michael Bennett's Media Session
Cliff Avril set to face former team with Seahawks hosting Lions
Seahawks pass rushing woes must be solved - Seaside Joe
Seahawks HC Carroll talks defensive scheme, pass rushers, more - Seattle Sports
Impressions from Day 14 of Seahawks camp: Seattle appears set to add veteran pass rusher, a new safety emerges
Earl Thomas, Cliff Avril weigh in on Kam Chancellor