DALLAS — MMA Fighting’s Ariel Helwani and Shaun Al-Shatti, take a closer look at the top storylines heading into Saturday night’s UFC 185, including UFC lightweight champion Anthony Pettis defending his title against Rafael dos Anjos in the main event.. In the co-main event, UFC women’s strawweight champion Carla Esparza tries to retain her title against Joanna Jedrzejczyk.