This is the third UFC tournament held in Philadelphia and the first since UFC 133 in August 2011. A lightweight match between Edson Barboza and former WSOF lightweight champion Justin Gaethje made headlines. A heavyweight match between Alexa Grasso and Marina Rodriguez is scheduled for UFC Fighting Night: Assun ? ? o vs. Moraes 2. However, according to a report on December 17th, Rodriguez withdrew from the game due to a hand injury. The pairing remained unchanged and the event was rescheduled. On the contrary, according to reports, Grasso withdrew from the competition due to injury and was replaced by former WSOF women's lightweight champion Jessica Aguilar. The lightweight competition between former UFC lightweight champion challengers Ray Borg and Liu Pingyuan is planned to take place during the event. However, according to a report on March 13th, Liu was replaced by newcomer Keller Phillips for an unknown reason. On the contrary, Phillips was expelled on March 25th for undisclosed reasons and replaced by Casey Kenny. When weighing, Ray Borg weighed 137.75 pounds, which is 1.75 pounds higher than the lightweight non championship limit of 136 pounds. He was fined 20% of the prize money for the competition, and the match with Kenny was played to catch up on weight.