Joshua Van and Alexandre Pantoja will meet again for the UFC flyweight championship at UFC 331 in September, officials announced Thursday. Their rematch will serve as the event’s headline fight.

The matchup brings the two flyweights back together with the division’s title at stake. The announcement places the championship bout at the center of UFC 331’s September card.

The event is also set to include a five-round lightweight matchup involving Arman Tsarukyan, adding another significant contest to the lineup. Further details about that fight were not included in the announcement.