Lightweight Rustam Khabilov has been forced to pull out of his UFC on FOX 16 bout against Danny Castillo due to visa issues and stepping up to replace Khabilov on the July 25 card will be Jim Miller. 
UFC officials announced the change on Monday afternoon.
UFC on FOX 16 will come from the United Center in Chicago, Illinois on July 25 and will be headlined a title rematch as T.J. Dillashaw defends the bantamweight title against former champion Renan Barao.
Miller (24-6, 1NC) has dropped back to back fights and his most decent defeat came at UFC on FOX 15 against Beniel Dariush. Before the back to back defeats, he was unbeaten in four fights. Castillo (17-8) has dropped his last two fights and is 1-3 in his last four. He is coming off a knockout defeat against Paul Felder at UFC 182 and it was the first time since 2012 that he was defeated by stoppage.
The current UFC on FOX 16: Dillashaw vs. Barao II fight card is below.
T.J. Dillashaw (11-2) vs. Renan Barao (33–2, 1NC)
Miesha Tate (16-5) vs. Jessica Eye (11-2,1 NC)
Edson Barboza (15-3) vs. Paul Felder (10-0)
Joe Lauzon (24-10) vs. Takanori Gomi (35-10, 1NC)
Eddie Wineland (21-10-1) vs. Bryan Caraway (19-7)
Tom Lawlor (9-5, 1NC) vs. Gian Villante (13-5)
Daron Cruickshank (16-6, 1NC) vs. James Krause (21-7)
Ramsey Nijem (9-5) vs. Erik Koch (14-4)
Jim Miller (24-6, 1NC) vs. Danny Castillo (17-8)
Zak Cummings (17-4) vs. Antonio Braga Neto (9-2, 1NC)
Kenny Robertson (15-3) vs. Ben Saunders (16-6-2)
Jessamyn Duke (3-2, 1NC) vs. Elizabeth Phillips (4-3)