Chiefs COO Mark Donovan appeared on 810 WHB Wednesday morning and noted that the league requires the Chiefs to give them an update on ticket sales each week and, based on where the Chiefs are sitting right now, they are on the list of games that could be blacked out this weekend. Chiefs officials are optimistic enough tickets sell but, still, they're not there yet and the league has deemed it a question mark at this point. Source: arrowheadpride.com