Arlovski was a ranked fighter when Rogers fought him. Andrei might have of gotten KOd by Fedor, but losing to the consensus #1 in your division doesn't mean you should be dropped from the rankings. Besides Arlovski had wins over ranked opponents like Rothwell, Big Country, and Werdum before fighting Fedor and Rogers.
Arlovski did beat Werdum and Rothwell - but I discount his win over Big Country because Roy was the victim of the most needless forced standup ever when he was literally working for an armlock from side control.
i can see rogers giving the likes of kongo,overeem,dos santos etc a hell of a fight! and a shot at beating any of em! that makes him a top heavyweight in my book, not some top 10 listings...why do people rank overeem so highly at HW?