UFC on Fox mixed martial arts at the United Center. Clay Guda, lands a punch to the the face of Hatsu Hioki. Clay Guida won the bout. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Main Event, Demetrious Johnson, celebrates his win over John Dodson. January 26, 2013 I Scott Stewart~Sun-Times

Rafael Natal, top, fights Sean Spencer during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

TJ Grant, right, fights Matt Wiman during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

UFC on Fox mixed martial arts at the United Center. Glover Teixeira lands a punch to the head of Rampage Quinton Jackson. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Glover Teixeira and Rampage Quinton Jackson battle inside the cage. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Rampage Quinton Jackson lands a punch to the head of Glover Teixeira. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Main Event, John Dodson with a jump kick to the back of Demetrious Johnson. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Main Event, Demetrious Johnson, lands a punch to the face of John Dodson. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Main Event, Demetrious Johnson, with a punch to the face of John Dodson. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. "Game Face" Brittney Palmer, with Round No.1 January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Shawn Jordan, with a backfip after his victory over Mike Russow. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Shawn Jordan, with a punch to Mike Russow. January 26, 2013 I Scott Stewart~Sun-Times

UFC on Fox mixed martial arts at the United Center. Shawn Jordan, winds up to land a punch to Mike Russow. January 26, 2013 I Scott Stewart~Sun-Times

Anthony Pettis, right, fights Donald Cerrone during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Ricardo Lamas, top, fights Erik Koch during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Ryan Bader, left, fights Vladimir Matyushenko during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Pascal Krauss, left, fights Mike Stumpf during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Hatsu Hioki, bottom, of Japan, fights Clay Guida during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Hatsu Hioki, bottom, of Japan, fights Clay Guida during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Hatsu Hioki, bottom, of Japan, fights Clay Guida during UFC on FOX 6 at the United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)

Demetrious Johnson, top, celebrates with crew members after defeating John Dodson during the UFC flyweight championship on FOX 6 at United Center in Chicago, Saturday, Jan. 26, 2013. (AP Photo/Nam Y. Huh)