Bryant Jennings is co-headlining. If Adamek beats Chambers, I'm fairly sure that NBC is gearing up for a showdown between their two flagship heavyweights.
If Chambers upsets those plans, I wouldn't mind seeing him steal Adamek's prize and get the nationally televised Jennings showdown. :think
I think Chambers wins by decision. This fight will be closer because Chambers has been inactive for more than year. None the less Chambers with his boxing skills, should be able to outbox Adamek.