challenge accepted
Ronda isn't scared. It is pretty obvious that Cyborg is the reason the fight hasn't happened. She has ducked/ran, lied and changed her mind a hundred times about nearly everything you can think of over the last four years to the point that nothing she says or does can be taken seriously.
First, the histry of Ronda going to 135 is outlined in this historical sherdog thread:
http://forums.sherdog.com/forums/92583821-post954.html
Then, what happend next was that Ronda beat Budd and Cyborg got busted for steroids. Ronda still agrees to fight Cyborg at 145 (According to Cyborg and her lawyers) for the FW title. However, with Cyborg unable to get her suspension reduced SF gets rid of the 145 class, effectively cancelling the fight (Cyborg's ruins the fight #1).
http://www.mmamania.com/2012/4/9/29...on-upheld-strikeforce-ronda-rousey-female-mma
Cyborg then says she will fight Ronda at a catchweight of 140 (Aug 13, 2012)
http://www.mmamania.com/2012/8/13/3240734/cris-cyborg-ronda-rousey-fight-catchweight
To which Ronda's manager agrees with VADA drug and hair folicle testing (Aug 19)
http://www.mmamania.com/2012/8/20/3256102/ronda-rousey-drug-testing-cyborg-steroids-strikeforce-mma
To which Cyborg backs out almost instantly saying she "will fight at 145, no less" and that she is the champion (actually she wasn't, she was stripped of the belt), and Cyborg ruins the fight for a second time, and ducks Ronda directly for the first time.
http://usatoday30.usatoday.com/spor...ight-rousey-at-145-pounds----no-less/828222/1
Then the UFC buys SF and picks up Ronda's contract and creates the 135 class. Then, the UFC picks up Cyborg's contract and even offers to let her to go Invicta and make money while she trims down until she can make 135. They even offered to PAY Mike Dolce for her to help her lose the weight.
http://www.bloodyelbow.com/2012/12/...es-services-to-get-cyborg-to-135-ronda-rousey
http://www.bloodyelbow.com/2014/12/...dy-fat-percentage-cain-velasquez-ronda-rousey
......