Most probably Khan's handlers saw that Bradley is declining and besides that he's not a threat to Khan in terms of punching power. Bradley would be a good scalp for Khan in a similar way as Martinez was for Cotto.:yep thoughts
Bradley gets outboxed by Khan at this moment. Not to mention that Bradley is a featherfisted fighter.
Bradley looked terrible last fight. Khan would take him. There is a reason why Bradley turned khan down twice, "What if I lose to Khan".