UFC 175: Chris Weidman vs. Lyoto Machida; Ronda Rousey vs. Alexis Davis

Chris Weidman, left, improved to 12-0 when he defeated Lyoto Machida by unanimous decision in a middleweight title bout July 5.  (John Locher / Associated Press)

Chris Weidman, right, had his hands full with middleweight challenger Lyoto Machida on Saturday night.  (John Locher / Associated Press)

Chris Weidman, left, takes down Lyoto Machida on his way to winning their UFC middleweight championship bout Saturday by unanimous decision.  (John Locher / Associated Press)

Lyoto Machida, left, landed several hard punches to Chris Weidman’s face Saturday night at UFC 175.  (John Locher / Associated Press)

Lyoto Machida, right, hits Chris Weidman during their middleweight title bout Saturday at UFC 175.  (John Locher / Associated Press)

Ronda Rousey is all smiles after defeating Alexis Davis with a 16-second TKO Saturday at UFC 175.  (John Locher / Associated Press)

Ronda Rousey uses a judo throw to take down Alexis Davis during their UFC fight Saturday in Las Vegas.  (John Locher / Associated Press)

Ronda Rousey lands a punch during her 16-second bout against Alexis Davis on Saturday night.  (John Locher / Associated Press)

Ronda Rousey gets to keep her UFC women’s bantamweight belt after defeating Alexis Davis on Saturday in Las Vegas.  (John Locher / Associated Press)

Uriah Hall, right, continued to build momentum as a UFC fighter with a unanimous-decision victory over Thiago Santos on Saturday night in Las Vegas.  (John Locher / Associated Press)

Uriah Hall, left, takes down Thiago Santos during their middleweight bout Saturday at UFC 175.  (John Locher / Associated Press)

Uriah Hall, right, battled through a foot injury to defeat Thiago Santos at UFC 175.  (John Locher / Associated Press)

Russell Doane, bottom, defeated Marcus Brimage by split decision during their bantamweight fight Saturday at UFC 175.  (John Locher / Associated Press)

Russell Doane improved to 2-0 in UFC with his split-decision victory Saturday over Marcus Brimage.  (John Locher / Associated Press)

Urijah Faber, one of the UFC’s most popular fighters, celebrates his win by submission over Alex Caceres at UFC 175.  (John Locher / Associated Press)

Alex Caceres hits Urijah Faber during their bantamweight bout at UFC 175 on Saturday.  (John Locher / Associated Press)

Urijah Faber, behind, gets Alex Caceres in a chokehold during their bantamweight bout Saturday at UFC 175.  (John Locher / Associated Press)

Urijah Faber, right, enjoys the moment after defeating Alex Caceres by submission Saturday in Las Vegas.  (John Locher / Associated Press)