The Ultimate Fighting Championship’s relentless march on the calendar will reach a crescendo with UFC 300 this Saturday at T-Mobile Arena in Las Vegas. A rare one-week respite will follow. Now, Sin City braces for the festivities associated with this historic milestone event, which showcases a legion of the most skilled, renowned and top-ranked competitors in the organization. One would be hard-pressed to recall a previous instance when so many champions, past or present, and upper-echelon contenders assembled under the same roof. While the fighters will be keen to leave an indelible print on a grand stage like UFC 300, they are also vying for supremacy in Sherdog’s Official Mixed Martial Arts Rankings.