Ihenacho has been ruled out for the rest of the game with the injury, which is the second he's suffered this season. The Broncos also lost cornerback Tony Carter to an ankle injury earlier in the game and are playing without Champ Bailey, who suffered a foot injury in the preseason.
Needless to say, the Denver secondary is getting thin. Already a weak spot for the team, the secondary has suffered more injuries than any other area of the Broncos' roster.
Ihenacho's injury is particularly worrisome because of how well the young safety has been playing early in 2013. He had 18 tackles in the team's first two games of the season.
Ankle injuries have a tendency to linger, so the Broncos will be hoping for some good luck, which they haven't had much of this season.