Sara McMann has picked up an undisclosed injury that will keep her out of a proposed fight with former Strikeforce champion Sarah Kaufman at UFC Fight Night 27 on August 28th.

McMann, a former Olympic wrestling silver medalist, made an immediate impact in her UFC debut earlier this year as she picked up a first round TKO victory against Shiela Gaff.

That extended her MMA record to a perfect 7-0 and a win over Kaufman could have helped solidify her as potential title challenger in the division currently ruled by Ronda Rousey.

The UFC are currently looking for a replacement to fight Kaufman who’s coming off a victory over Leslie Smith at Invicta FC 5 which was her first bout since losing the Strikeforce 135lb title to Rousey in August of last year.

McMann Vs Kaufman had been scheduled for a main card spot at UFC Fight Night 27 which will be headlined by a welterweight rematch between Carlos Condit and Martin Kampmann.