An injury has knocked Jim Hettes out of a planned UFC 159: Jones vs. Sonnen encounter with Steven Siler, according to UFC officials. Siler will remain on the card, though, facing Kurt Holobaugh.
Siler (21-10) has won three of his four UFC bouts, while Holobaugh (9-1) will be making his Octagon debut. The card takes place April 27 from the Prudential Center in Newark, New Jersey.
Holobaugh last fought in Strikeforce, suffering his first career defeat at the hands of Pat Healy. He owns eight stoppage victories in nine wins.
The extent of Hettes’ injury remains unknown at this time.