Saturday’s UFC event at Ball Arena in Denver, Colo. was headlined by a women’s flyweight bout between former two-time strawweight champion  Rose Namajunas and  Tracy Cortez .   Namajunas entered the fight ranked 6th in the women’s 125-pound weight class. Cortez made the walk to the octagon ranked 11th and riding an 11-fight.  With a win, Namajunas expected to put herself in title contention and give herself the opportunity to become a two-division UFC champion. Cortez hoped to leapfrog several fighters in the divisional rankings with a win over “Thug.”    Namajunas landed first with a calf kick