the werdum loss is legit as they come. it's the nature of the business. old veterans lose to new up and coming fighters. it's not like werdum is a bum, he's got multiple gold medals in grappling tournaments, and is going on a jones-like run right now. hendo/bigfoot, meh, they were both on that trt loophole.
as for arlovski/sylvia, i think they just got caught. if they fought multiple times, i could see andrei catching fedor too like fujita did, but finishing the job. i love timmy, he's one of my fav heavyweights, but i think he was too slow in that match up, and styles make fights.