It's becoming pretty routine for Cristiane 'Cyborg' Justino: Win before breaking a sweat, then call out Ronda Rousey.
Cyborg beat Faith Van Duin with strikes against the cage in only 45 seconds to retain her Invicta FC featherweight title in the main event of Invicta FC 13 Thursday night -- one second less than it took her to dispose of Charmaine Tweet at Invicta FC 11.
After beating Van Duin (5-2), Cyborg told UFC women's bantamweight champion Rousey to "stop running."
But when Cyborg (14-1, 1 NC) was asked if she would go down to Rousey's weight class for her next fight, she simply said she wanted to fight again as soon as possible.
The women's MMA equiavlent of Mayweather vs. Pacquiao continues...
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Bantamweight: Tonya Evinger (16-5) def. Irene Aldana (5-2) by TKO at 4:38 of Round 4 to win Invicta bantamweight title
Aldana was suffering from flu-like symptoms leading up to the fight, but showed some spirit in the first round by fighting off a cross armbar that started to resemble what Rousey did to Miesha Tate.
Ironically, despite Aldana's illness it was women's MMA mainstay Evinger who vomited in her corner after the third round. But it didn't slow her down in Round 4, as she mounted Aldana and pounded on her until the referee had to step in.
Atomweight: Ayaka Hamasaki (12-1) def. Herica Tiburcio (9-3) by split decision (48-47, 47-48, 49-46) to win Invicta atomweight title
Tiburcio had a lot to live up to in her first title defense after defeating one of Invicta's most marketable assets, Michelle "The Karate Hottie" Waterson, in a stunner to win the atomweight belt at Invicta FC 10.
It certainly looked like Tiburcio was back to her old ways in the first round, as she used a roundhouse kick and a straight right hand to stun Hamasaki against the cage, then cinched in the same guillotine choke that forced Waterson to tap out.
But Hamasaki survived, and also lucked out when Tiburcio applied the guillotine right as the bell sounded to end Round 2. From that point on Hamasaki controlled the bout on the mat, landing takedown after takedown. Tiburcio actually was more active than Hamasaki from the bottom, continually working for triangle chokes and armbars. Hamasaki was forced to stay defensive on top, but the riding time was enough to take the split decision and send the atomweight title into yet another tailspin.
Bantamweight: Pannie Kianzad (8-0) def. Jessica-Rose Clark (5-2) by unanimous decision, 30-27 on all three cards
Clark put up a good fight but never really challenged Kianzad. Kianzad likely won an evenly match first round with a trip takedown in the final 20 seconds, then dominated the final two rounds. She controlled the mat in the second, then showed off some impressive counterpunches when the fight stayed upright in Round 3.
Atomweight: Amber Brown (5-1) def. Catherine Costigan (5-1) by submission (rear naked choke) at 3:34 of Round 1
Brown calls herself the "Bully," and she earned her nickname by giving Costigan the first blemish on her record.
Kickboxing specialist Costigan never got a chance to fight on her feet, as Brown used a trip to take down Costigan and kept her in full guard throughout the bout.
Brown patiently pummeled Costigan with her hands and elbows. When the referee implored Costigan to defend herself more or risk a stoppage, she gave up her back, allowing Brown to quickly apply the rear naked choke for the tapout.
Strawweight: Jamie Moyle (3-0) def. Amy Montenegro (6-2) by split decision (29-28, 28-29, 29-28)
Moyle controlled the first round, attempting to end the match with a rear naked choke and an armbar. Montenegro came back strong in the second round, showing off some of her kickboxing expertise.
The pair mostly kept each other at bay in Round 3, earning some boos from the crowd but kudos from Invicta matchmaker/analyst Julie Kedzie for their technical prowess.
Featherweight: Amber Leibrock (1-0) def. Marina Shafir (1-2) by TKO at 37 seconds of Round 1.
The buzz Thursday night centered around Shafir, a training partner of Rousey and member of Rousey's famed "Four Horsewomen" stable.
That didn't last long. The debuting Leibrock stole the show by landing a pair of overhand rights in the opening minute to floor Shafir, then stayed on her feet and used her 5-foot-11 frame to rain down more rights until the referee had to step in.
Shafir was considered someone who with some grooming could be a test for featherweight staple Cyborg. But after TKO losses in consecutive years the former judoka's lofty career prospects now belong to her opponent.
"[Featherweights] have a new problem on their hands, and that's me," Leibrock said.