Nunes (6-1) also has a serious contusion on the foot. In the best case scenario, Nunes could begin light training by next week, but no determination will be made until that time.
The fight between Nunes and Kedzie (16-8) was slated for 135 pounds. Nunes, who turned 23 on Monday, made her Strikeforce debut Jan. 7 and knocked out Julia Budd in 14 seconds in a 145-pound match. Nunes has finished each of her opponents since losing her MMA debut. Budd has recently been seen as the nutritionist for Quinton "Rampage" Jackson.
There is no word yet on a replacement for Kedzie or if the bout will be eliminated from the card.