Posted by ESPN.com's Mike Sando
The Cardinals knew veteran defensive end Bert Berry was a high risk for injuries. They prepared for his potential absence. Now they'll find out whether Travis LaBoy can avoid the concussion problems that essentially ended his career in Tennessee.
Berry, who turned 33 in August, is out indefinitely after suffering a groin tear during a 24-17 defeat at Washington in Week 3. Berry missed 21 games over the previous three seasons. LaBoy replaced him as the starter after signing as a free agent, but Berry remained an important part of the rotation. His fumble-forcing sack on J.T. O'Sullivan was a key play for the Cardinals in their season opener.
The Cardinals like their depth and flexibility in the front seven. Clark Haggans, another free-agent addition, has been backing up Chike Okeafor. Arizona has held up fairly well against the run despite injuries to nose tackles Gabe Watson and Alan Branch.
LaBoy has never missed more than three games in a season, but he played less than 35 percent of defensive snaps for the Titans last season, down from about half the snaps earlier in his career. Berry's ability to heal quickly could determine how much the Cardinals need LaBoy.