UFC 75: â€œChampion vs. Championâ€ is less then a week away. If you are interested in attending the weigh-ins live, they will be held at the O2 Arena in London, England on September 7. The event starts around 3pm BST and is free and open to the public. The actual weigh-ins start at 4pm BST, Cage Today will have the results of the weigh-ins as we get them. For the complete UFC 75 lineup check out our Fight Card section.