LAS VEGAS – Michelle Waterson has a new career philosophy, and that’s why you’ll see her in the octagon Saturday in the UFC on ESPN 23 main event. At this time last week, Waterson wasn’t scheduled to fight on the ESPN-televised card at the UFC Apex in a women’s flyweight headliner with Marina Rodriguez. That spot was reserved for T.J. Dillashaw and Cory Sandhagen. But when Dillashaw suffered a cut in training, the promotion was forced to scramble for a new top bout
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