Bovada recently released a new set of 2016 Super Bowl odds probably because, well, it's a slow time in the NFL right now. The last time they updated their odds was back in early May, prior to the conclusion of NFL spring workouts.
The Philadelphia Eagles last left off with the seventh best odds to win a championship. That hasn't changed. However, the Eagles' odds went from being more favorable at 18/1 to slightly less favorable at 20/1.
So what's the deal? Maybe people are slightly concerned with the fact Sam Bradford isn't a full participant in practice yet.