UFC on FOX 17 is undergoing some changes in the weeks leading up to the event as Germaine de Randamie has been forced out of her women’s bantamweight bout with Sarah Kaufman due to injury.

UFC officials confirmed the news to MMAjunkie Thursday evening.

The UFC is currently looking for a replacement to face Kaufman (17-3 MMA, 1-1 UFC) at the event.

UFC on FOX 17 takes place Dec. 19 at Amway Center in Orlando, Fla. The event’s main card airs live on FOX following expected prelims on FOX Sports 1 and UFC Fight Pass. UFC on FOX 17 is headlined by a lightweight title match between champ Rafael dos Anjos and Donald Cerrone.

De Randamie (5-3 MMA, 2-1 UFC), “The Iron Lady from the Netherlands,” picked up a win in March with a second-round TKO of Larissa Pacheco at UFC 185 in Dallas. That was her first fight in 17 months. It appears that she will be sidelined for a bit more time due to the injury.

Kaufman was submitted by Alexis Davis in her most recent outing at UFC 186. Prior to that defeat she took a decision victory over Leslie Smith for her first win in the octagon.

MAIN CARD (FOX Sports 1, 8 p.m. ET)

Champ Rafael dos Anjos vs. Donald Cerrone – for lightweight title Junior Dos Santos vs. Alistair Overeem Nate Diaz vs. Michael Johnson Karolina Kowalkiewicz vs. Randa Markos

PRELIMINARY CARD (FOX Sports 1, 6 p.m. ET)

Myles Jury vs. Charles Oliveira C.B. Dollaway vs. Nate Marquardt Sarah Kaufman vs. opponent TBA Tamdan McCrory vs. Josh Samman

PRELIMINARY CARD (UFC Fight Pass, 3:45 p.m. ET)

Danny Castillo vs. Nik Lentz Jim Alers vs. Cole Miller Leon Edwards vs. Kamaru Usman Hayder Hassan vs. Vicente Luque Luiz Henrique vs. Francis Ngannou

For more on UFC on FOX 17, check out the UFC Events section of the site.