Recovering from an ACL tear is a long, difficult process. Von Miller wasn't quite up to his usual standard with just one tackle last week. But, Fox said the second game of the season offers players the opportunity to make a jump in how they play because they now have significant snaps under their belt. Miller will look to revert back to the elite pass rusher he was in 2012 and get to Alex Smith. Smith is a mobile quarterback who, in his two games against the Broncos last season, totaled 98 rushing yards and 523 yards in the air."He's a guy that can definitely run, so we have to, just like Andrew Luck, we have to be able to stay in coverage when he does get out of the pocket and actually he was a tough competitor last year," said Chris Harris Jr. "He took some hits from us and made some tough throws, so I know Alex Smith will definitely be a challenge for us."