What happened: Islam Makhachev faces Ian Machado Garry for the welterweight title at Xfinity Mobile Arena. Mackenzie Dern defends the strawweight belt against Gillian Robertson.
Why it matters: Makhachev and Dern are each making their first defense of their current championship. The card marks UFC's return to Philadelphia.
By the numbers: Main card: 9 p.m. ET. Championship fights: 2.
What to watch: The main and co-main events will settle both title fights.