by MMAWeekly.com
The Ultimate Fighting Championship on recently officially added three more bouts for its April 2 return to Colorado. The additions of Houston Alexander vs. James Irvin, Gray Maynard vs. Frankie Edgar, and Roman Mitichyan vs. George Sotiropoulos rounds the fight card out to 10 bouts at the Broomfield Event Center.

The main event of UFC Fight Night 13 is an all-New England lightweight contest between Kenny Florian and Joe Lauzon.

The UFC has yet to officially name a replacement for Stephan Bonnar, who has had to withdraw due to torn ligaments, but reports indicate that Tim Boetsch will step in to face Ultimate Fighter veteran Matt Hamill in Broomfield.

UFC Fight Night 13 will serve as a lead-in to the premier of the seventh season of The Ultimate Fighter reality series, which features middleweight athletes.

Main Card Bouts*:
-Kenny Florian vs. Joe Lauzon
-Karo Parisyan vs. Thiago Alves
-Matt Hamill vs. Tim Boetsch**
-Houston Alexander vs. James Irvin

Preliminary Bouts*:
-Frankie Edgar vs. Gray Maynard
-Marcus Aurelio vs. Spencer Fisher
-Din Thomas vs. Josh Neer
-Clay Guida vs. Samy Schiavo
-Roman Mitichyan vs. George Sotiropoulos
-Tommy Speer vs. Anthony Johnson

*Subject to Change
**Not officially announced by the UFC