Sergio Moraes (10-2 MMA, 4-1 UFC) needs a new opponent at UFC 198 after Kamaru Usman (7-1 MMA, 2-0 UFC) was forced out of their welterweight matchup.

The change was originally reported by Combate and was subsequently confirmed by MMAjunkie. Usman has been replaced by Luan Chagas (14-1 MMA, 0-0 UFC).

UFC 198 takes place May 14 at Arena da Baixada in Curitiba, Parana, Brazil. The main card airs on pay-per-view following prelims on FOX Sports 1 and UFC Fight Pass, though the bout order hasn’t been finalized.

Moraes is riding a four-fight winning streak after dropping his first fight in the octagon. In his most recent bout, Moraes defeated Omari Akhmedov by TKO at UFC Fight Night 80. The TKO was the first he has scored as a professional to go along with seven career submission victories.

Chagas is riding a nine-fight winning streak and will make his octagon debut in the bout with Moraes. He has never been to the judges’ scorecards in his professional career.

Usman will have to wait to try and expand on his six-fight winning streak and two wins to kick off his UFC career. The exact nature of his injury has not been specified.

With the change, the UFC 198 card includes:

Champ Fabricio Werdum vs. Stipe Miocic – for heavyweight title

Vitor Belfort vs. Ronaldo Souza

Uriah Hall vs. Anderson Silva

Cristiane Justino vs. Leslie Smith

Corey Anderson vs. Mauricio Rua

Matt Brown vs. Demian Maia

Warlley Alves vs. Bryan Barberena

Nate Marquardt vs. Thiago “Marreta” Santos

Rob Font vs. John Lineker

Patrick Cummins vs. Antonio Rogerio Nogueira

Yancy Medeiros vs. Francisco Trinaldo

Luan Chagas vs. Sergio Moraes

Renato Moicano vs. Zubaira Tukhugov

For more on UFC 198, check out the UFC Rumors section of the site.