The UFC travels to Philadelphia for the third time for UFC on ESPN 2. The main event will feature a lightweight fight between two exciting fighters, Edson Barboza and Justin Gaethje. Both fighters will be entering the fight coming off a KO/TKO finish. For Barboza, it came at UFC on Fox 31 when he put on a striking clinic against Dan Hooker that would end in the third round after a hard blow to the body from Barboza. Gaethje’s win came at UFC Fight Night 135 when he knocked James Vick out cold in round one.