According to a report by MMAjunkie.com, Jay Hieron has been signed to replace Josh Koscheck and meet Jake Ellenberger at UFC 151: Jones vs. Henderson. The card takes place September 1 from Las Vegas.
Koscheck was pulled from the bout due to a bulging disc in his back. His return date is currently unknown.
Hieron (23-5) lost both of his UFC bouts, but is 11-1 in his last 12 fights. He was defeated by both Georges St-Pierre and Jonathan Goulet.
Ellenberger (27-6) is coming off a loss to Martin Kampmann. Hieron and Ellenberger competed once in 2006, with Hieron claiming a decision victory to hand Ellenberger his first career loss.