Photos: UFC 191: Demetrious Johnson vs. John Dodson

Demetrius Johnson, left, scored another victory over John Dodson during UFC 191 on Saturday night in Las Vegas.

Demetrius Johnson, right, defeated John Dodson by unanimous decision Saturday night to keep his UFC flyweight belt.

Demetrious Johnson, right, and John Dodson exchange blows during their UFC flyweight title bout Saturday in Las Vegas.

Demetrius Johnson takes down John Dodson at UFC 191 on Saturday in Las Vegas.

Demetrius Johnson defeated John Dodson on Saturday night for a second time during his UFC flyweight championship reign.

Demetrius Johnson celebrates after defeating John Dodson in their UFC flyweight title bout Saturday in Las Vegas.

Andrei Arlovski kicks Frank Mir during their heavyweight bout Saturday at UFC 191 in Las Vegas.

Andrei Arlovski, left, fights Frank Mir at UFC 191 on Saturday in Las Vegas.

Andrei Arlovski, right, beat Frank Mir by unanimous decision Saturday at UFC 191 in Las Vegas.

Andrei Arlovski, left, embraces Frank Mir after their heavyweight bout Saturday at UFC 191 in Las Vegas.

Anthony Johnson celebrates after defeating Jimi Manuwa at UFC 191 on Saturday in Las Vegas.

Anthony Johnson, top, fights Jimi Manuwa at UFC 191 on Saturday in Las Vegas.

Corey Anderson, right, beat Jan Blachowicz by unanimous decision Saturday at UFC 191 in Las Vegas.

Corey Anderson, right, fights Jan Blachowicz at UFC 191 on Saturday in Las Vegas.

Paige VanZant, left, defeats Alex Chambers by submission Saturday at UFC 191 in Las Vegas.

Paige VanZant, left, knees Alex Chambers at UFC 191 on Saturday in Las Vegas.

Paige VanZant celebrates after defeating Alex Chambers at UFC 191 on Saturday in Las Vegas.