WEC 45: Cerrone vs. Ratcliff was a mixed martial arts event held by World Extreme Cagefighting that took place on December 19, 2009 at The Pearl at The Palms in Las Vegas, Nevada. It marked the first time the WEC has held back-to-back events at the The Pearl at The Palms.
Donald Cerrone
Ed Ratcliff
Anthony Njokuani
Chris Horodecki
Joseph Benavidez
Rani Yahya
Scott Jorgensen
Takeya Mizugaki
Bart Palaszewski
Anthony Pettis
Zach Micklewright
Muhsin Corbbrey
Chad George
John Hosman
Brandon Visher
Courtney Buck
Brad Pickett
Kyle Dietz
Erik Koch
Jameel Massouh