Rooting for Penn as always.
Base on recent record, dont count on Penn's cardio against WW. But he is still a threats against any top WW in the first round. He was pretty even against GSP during the 1st round of their 2nd fight and looking good against Fitch and Diaz during the 1st round of their fights. Penn need to take this via KO/TKO during the 1st round.
But if this goes beyond the first round, chances is Penn might be overhelm by Rory.
Either way, WAR PENN!