The upcoming UFC on FOX 10 event has lost a scheduled prelim bout, as both Pascal Krauss and Adam Khaliev were removed by officials.

Set for January 25 from the United Center in Chicago, the event features a headline act between Benson Henderson and Josh Thomson. The Krauss-Khaliev fight was set for the prelims.

Krauss (11-2) has split his four UFC bouts, while Khaliev (6-0) was to make his debut. No exact reason was given for each fighter pulling out.