The Ultimate Fighting Championship’s return to the UFC Apex on Saturday in Las Vegas offers a six-fight undercard that should provide a solid amount of action. In the featured slot, Sam Alvey makes perhaps his last stand, as the much-maligned middleweight finishes out his contract and attempts to break a years-long winless streak against Michal Oleksiejczuk. The next bout down seems guaranteed to bring some entertainment value, with electric lightweight Terrance McKinney facing Erick Gonzalez. Beyond that, there are some other well-matched affairs. “The Ultimate Fighter” Season 29 winner Bryan Battle makes his welterweight debut against the dangerous Takashi Sato, and the show opens with two women’s battles that look relatively even on paper and should be important for everyone involved.