See Tim Sylvia, Andrei Arlovski, Ken Shamrock, Tito Ortiz and all of the fighters preparing to battle it out at UFC 61: BITTER RIVALS, as they weigh-in at the Mandalay Bay Events Center in Las Vegas. The public is welcome Friday, July 7th from 3-5pm. This event is free of charge. Just make sure you don't try to film the event or Dana White will sick his publicist on you. Just ask the folks over at Sherdog.com if you don't believe me.