The UFC's return to Northern Ireland is getting a significant reshuffling.
Gunnar Nelson is injured and out of his main event with Dong Hyun Kim at UFC Fight Night 99 on Nov. 19 in Belfast, sources told MMA Fighting's Ariel Helwani. In that fight's place will be a new headlinee: a rematch between Gegard Mousasi and Uriah Hall.
The extent of Nelson's injury is unclear at this time.
Mousasi (40-6-2) is coming off a second-round TKO of Vitor Belfort at UFC 204 earlier this month.