Top 125-pound standout – and now RFA flyweight champion – Sergio Pettis continued to make his case for the UFC to bring him into the fold alongside his older brother, UFC lightweight and featherweight contender Anthony Pettis. Sergio made quick work of Dillard “Joe” Pegg at Friday night’s RFA 8 event in Milwaukee, which aired live on AXS TV, knocking Pegg out in the first round. Check out the full RFA 8 main event fight video of Sergio Pettis vs. Joe Pegg. Be sure to  Like MMAWeekly.com on Facebook  and  Follow @MMAWeeklycom on Twitter .