Ronda Rousey works Sarah Kaufman for her armbar on Saturday. (Tracy Lee for Y! Sports)
SAN DIEGO - If Ronda Rousey's armbar is not yet regarded as the most devastating single move in all of sports, it probably should be.
The Strikeforce women's bantamweight champion ran her professional record to 6-0 Saturday night against former title holder and challenger Sarah Kaufman at the Valley View Casino Center. It was Rousey's sixth win via first-round submission.
This time, her thus-far-unstoppable armbar forced a tap in just 54 seconds. Kaufman fell to 15-2 in her career with the loss. Each win of Rousey's has been by armbar.
The less experienced Rousey applied an aggressive approach out of the gate, to which the veteran Kaufman had no time for response.
Team Rousey was all smiles after yet another first-round win on Saturday. (Tracy Lee for Y! Sports)
The fast pace of the match is symbolic of Rousey's career thus far, as her rise has been meteoric. She needed just five bouts to claim the title, but proving that quick ascent was no flash in the pan was an obvious theme entering Saturday's match.
"I can't call myself champion until I defend my belt," Rousey said.
She can indeed start calling herself champion. And until someone has an answer for her armbar, she will be able to for a while.
The next to try is yet to be determined, but if Rousey gets her way it will be Cristiane "Cyborg" Santos, who the champion called out in her post-match interview.
Other popular content on the Yahoo! network:• Y! News: Soccer star David Beckham's statue raises eyebrows
• Dwyane Wade says LeBron James is playing at Michael Jordan's level
