If all goes to plan, UFC 311 will be a big moment for Ailin Perez ’s fighting career. The rising UFC women’s bantamweight contender faces veteran Karol Rosa in the preliminary card of Saturday’s UFC pay-per-view event. It’s an opportunity for Perez (11-2 MMA, 4-1 UFC) to extend her winning streak to five in a row and, according to her, crack the top 10 of the UFC official rankings.