In this photo released by Inovafoto, Ronda Rousey, left, of the United States, battles Brazil's Bethe Correia during their mixed martial arts bantamweight title fight at UFC 190, early Sunday, August 2, 2015, in Rio de Janeiro, Brazil. (Photo by Alexandre Loureiro/Inovafoto via AP Photo)

In this photo released by Inovafoto, Ronda Rousey, center, of the United States, is pulled away by the referee after she knocked out Brazil's Bethe Correia during their mixed martial arts bantamweight title fight at UFC 190, early Sunday, August 2, 2015, in Rio de Janeiro, Brazil. Rousey knocked out Correia 34 seconds into the first round to win. (Photo by Alexandre Loureiro/Inovafoto via AP Photo)

Vitor Miranda (top) of Brazil fights with Clint Hester of U.S during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Vitor Miranda of Brazil celebrates after defeating Clint Hester of U.S during the Ultimate Fighting Championship (UFC), a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Clint Hester of U.S leaves the cage after being defeated by Vitor Miranda of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Vitor Miranda (L) of Brazil fights with Clint Hester of U.S during the Ultimate Fighting Championship (UFC), a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Iuri Alcantara of Brazil fights with Leandro Issa of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Iuri Alcantara (L) of Brazil fights with Leandro Issa of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Patick Cummins of U.S reacts as he fights against Rafael Cavalcante of Brazil during the Ultimate Fighting Championship (UFC), a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Blood is seen on the feet of Rafael Cavalcante of Brazil as he fights with Patrick Cummins of U.S during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Rafael Cavalcante (R) of Brazil fights with Patrick Cummins of U.S during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Patrick Cummins of U.S celebrates after defeating Rafael Cavalcante of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Patrick Cummins of U.S celebrates after defeating Rafael Cavalcante of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Rafael Cavalcante (L) of Brazil fights with Patrick Cummins of U.S during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Patrick Cummins of U. S fights with Rafael Cavalcante of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Jessica Aguilar of Mexico tries to skip a punch of Claudia Gadelha of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Claudia Gadelha (R) of Brazil fights with Jessica Aguilar of Mexico during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Claudia Gadelha (L) of Brazil fights with Jessica Aguilar of Mexico during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Claudia Gadelha (R) of Brazil fights with Jessica Aguilar of Mexico during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Minotauro Nogueira (L) of Brazil receives a punch during a fight against Stefan Struve of Netherlands during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Minotauro Nogueira (L) of Brazil receives a punch during a fight against Stefan Struve of Netherlands during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Reginaldo Vieira (L) of Brazil fights with Dileno Lopes of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Minotauro Nogueira (L) of Brazil fights with Stefan Struve of Netherlands during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Reginaldo Vieira (L) of Brazil fights with Dileno Lopes of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Reginaldo Vieira (L) of Brazil fights with Dileno Lopes of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Reginaldo Vieira (L) of Brazil fights with Dileno Lopes of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Rogerio Nogueira (L) of Brazil fights with Mauricio Rua of Brazil during the Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Ronda Rousey (L) of U.S fights with Bethe Correia of Brazil during their Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)

Bethe Correia of Brazil lies on the ground after receiving a punch of Ronda Rousey of U.S during the Ultimate Fighting Championship (UFC) match, a professional mixed martial arts (MMA) competition in Rio de Janeiro, Brazil August 1, 2015. (Photo by Ricardo Moraes/Reuters)