Ronda Rousey opens as favorite against Amanda Nunes at UFC 207

— -- Former UFC women's bantamweight champion Ronda Rousey will open a betting favorite to reclaim her title against Amanda Nunes at UFC 207 on Dec. 30 in Las Vegas.

Rousey (12-1) will open a -280 favorite to defeat Nunes, who is listed at 220. Odds were provided by Nick Kalikas of MMAOddsBreaker.com.

Since signing with the UFC in late 2012, Rousey has never opened as a betting underdog. That trend continues for UFC 207, although these are the shortest odds ever on a Rousey title fight.

"Rousey had an era of dominance, but there are many questions surrounding her now that she has not only been defeated but also knocked out," Kalikas told ESPN.com. "This fight will boil down to who can utilize their strengths most. Will Nunes be able to keep this fight upright and do damage? Can Rousey close the distance with power or judo throws?

"Rousey is still one of, if not the most popular fighters of the modern era, so she's still going to open a -280 favorite."

Nunes (13-4) won the title by submitting Miesha Tate in the first round of a title fight at UFC 200 on July 9. Fighting out of American Top Team in Coconut Creek, Florida, she has finished 12 of her 13 career wins. She has been knocked out twice and submitted once.