Another change has been made to the August UFC on FS1: Shogun vs. Sonnen card, this time at the prelim level.

Akira Corassani will not face Mike Brown on August 17, as he suffered an injury. In his place will step Steven Siler, who will look to spoil the return of Brown.

Brown, a former WEC champion, has posted a 26-8 record in his MMA career. That includes a 2-3 UFC mark. He briefly contemplated retiring, but opted to give it another run.

Siler (22-10) is 4-1 in his Octagon career, including a recent decision win over Kurt Holobaugh.