Broncos | Dan Koppen may have torn ACL
Sun, 28 Jul 2013 12:23:52 -0700
This would be a blow to Peyton Manning, who requires premium protection to stay upright and on the field. Koppen is one of the best centers in the league, and his loss would have an effect on the stability of the offense.
Source: FOXSports.com - Jay Glazer