Ronda Rousey (black shirt) as she defeated Sarah Kaufman (blue shirt)during their Strikeforce MMA women's bantamweight title bout at the Valley View Casino Center. Rousey won in 54 seconds of the first round.
Ronda Rousey takes Sarah Kaufman to the canvas during their Strikeforce bantamweight title fight at the Valley View Casino Center in San Diego on Saturday night.
Ronda Rousey tries to pry Sarah Kaufman's arm away to execute an armbar.
And ... success!
54 seconds into the fight, Ronda Rousey gets that arm free and successfully armbars Sarah Kaufman, defending her title with another win.
On the mic
As if a victory wasn't enough, Ronda Rousey calls out Cris 'Cyborg' Santos after successfully defending her bantamweight title.
Proud as a papa
Ronda Rousey beams beside trainer Gene LeBell after defeating Kaufman.
Ovince St. Preux (far left) turns T.J. Cook's head during their Strikeforce MMA light heavyweight bout in San Diego.
T.J. Cook is out flat on the mat — a clear loser to Ovince St. Preux.
Lumumba Sayers and Anthony Smith (black shorts) hit the mat hard in their Strikeforce MMA middleweight bout.
Anthony Smith puts Lumumba Sayers in a triangle choke. Sayers would tap out of the hold to give Smith the first-round win.
Tarec Saffiedine pokes Roger Bowling in the eye during their Strikeforce MMA welterweight bout in San Diego.
Tarec Saffiedine takes dominant control over Roger Bowling. Moves like this would ultimately give Saffiedine a unanimous decision.
Go for a spin
Julie Kedzie delivers a spinning kick to the midsection of Miesha Tate in their bantamweight fight.
To the wire
Miesha Tate achieves a third round armbar, defeating Julie Kedzie.