Ronda Rousey's next fight against Sarah Kaufman set for Strikeforce event on Aug. 18 in San Diego

She's back.

Newly-crowned Strikeforce Women's Champion Ronda Rousey has her first 135-pound title defense lined up for Aug. 18, 2012, in San Diego, California, according to MMAFighting.com. She's expected to face off against former division straphanger Sarah Kaufman.

Sorry, Marloes Coenen, your call-out fell on deaf ears.

While promotion officials were hastily assembling a secret summer showdown between Rousey and Cristiane Justino, one torpedoed by the latter's failed drug test, Kaufman has been calling for another crack at the division crown after proving she was still worthy of the throne by defeating fellow Canadian Alexis Davis at the Strikeforce: "Tate vs. Rousey" event last March in Columbus, Ohio.

The same Strikeforce event that saw the "Rowdy" one usurp the belt from fellow Showtime headliner Miesha Tate -- and mangle her arm in the process.

The majority decision victory was Kaufman's third win in a row and a strong statement for getting the next shot at the division title; however, it should be noted that in 16 professional fights, Kaufman has just one loss.

And it came by armbar.

That's a recipe for disaster against Rousey, a former Olympian, who is not only undefeated but also has eight straight armbar submission finishes, dating back to her three amateur fights in 2010-11.

Anyone think Kaufman has a chance?

No word on whether or not Rousey vs. Kaufman will main event the Aug. 18 Strikeforce event in San Diego but that's expected to be announced in the coming weeks.

Stay tuned to MMAmania.com for more details on this still-developing fight card.