Holdsworth will now face Chico Camus, a 29-year-old who rides a two-fight winning streak into the bout.
UFC officials confirmed the switch late Friday night.
Holdsworth (5-0) dominated his season of The Ultimate Fighter, earned quick submission victories over Chris Beal and Michael Wooten to pave his way to the tourney finals. Once there, the Team Alpha Male product completed his undefeated run by submitting David Grant with a second-round rear-naked choke.
Camus (14-4) has won three of his four UFC contests, including back to back victories over Kang and Yaotzin Meza.
UFC 173 takes place May 24, 2014 at the MGM Grand Garden Arena in Las Vegas, NV. An updated fight card can be seen below.
- Renan Barao vs. T.J. Dillashaw
- Junior dos Santos vs. Stipe Miocic
- Robbie Lawler vs. Jake Ellenberger
- Takeya Mizugaki vs. Francisco Rivera
- Tony Ferguson vs. Katsunori Kikuno
- Jamie Varner vs. James Krause
- Chris Holdsworth vs. Chico Camus
- Michael Chiesa vs. Francisco Trinaldo
- Anthony Njokuani vs. Vinc Pichel
- Al Iaquinta vs. Mitch Clarke
- Doo Ho Choi vs. Sam Sicilia
- Jingliang Li vs. Danny Mitchell