With a little over a week to go, officials have been forced to replace two fighters scheduled for next Saturday’s UFC Fight Night 58 event.

Rony Jason has been removed from a planned bout with Tom Niinimaki, while Dan Miller has been knocked out vs. Daniel Sarafian. Stepping in to replace Jason will be Renato Carneiro, while Antonio dos Santos, Jr. replaces Miller. Both changes were first reported by Combate.

Carneiro (8-0-1) and Niinimaki are set to open the main card from Sao Paulo, Brazil. The event features Lyoto Machida vs. C.B. Dollaway and airs on FOX Sports 1.

Dos Santos (6-1) and Sarafian are part of the prelims.

Below is the current lineup:

MAIN CARD (FOX Sports 1/10 p.m. ET)

Middleweight: Lyoto Machida vs. C.B. Dollaway

Bantamweight: Renan Barao vs. Mitch Gagnon

Light Heavyweight: Patrick Cummins vs. Antonio Carlos, Jr.

Lightweight: Rashid Magomedov vs. Elias Silverio

Welterweight: Erick Silva vs. Mike Rhodes

Featherweight: Renato Carneiro vs. Tom Niinimaki

PRELIMINARY CARD (FOX Sports 1/8 p.m. ET)

Light Heavyweight: Igor Pokrajac vs. Marcos Rogerio de Lima

Welterweight: Antonio dos Santos, Jr. vs. Daniel Sarafian

Featherweight: Hacran Dias vs. Darren Elkins

Bantamweight: Yuta Sasaki vs. Leandro Issa

PRELIMINARY CARD (UFC Fight Pass/7 p.m. ET)

Welterweight: Tim Means vs. Marcio Alexandre

Middleweight: Jake Collier vs. Vitor Miranda