By Edward Chaykovsky

The last week or so has been an all-out verbal battle between retired former champion Floyd Mayweather Jr. and Oscar De La Hoya.

A few days ago, Mayweather shredded De La Hoya for approving the placement of UFC champion Ronda Rousey for the cover of Ring Magazine. De La Hoya's promotional company, Golden Boy Promotions, owns the publication. Mayweather felt the magazine's maneuver made the sport of "boxing look bad."

De La Hoya hit back, pretty strong, verbally assaulting Mayweather and his Hall of Fame career with a scathing open letter in the December edition of Playboy.

Mayweather and Rousey are far from friendly. The two of them have traded plenty of barbs in the media over the last twelve months.

Mayweather vs. Rousey in the UFC's Octagon? De La Hoya predicts Rousey would secure one of the quickest victories of her career.

"Ronda taps him out easy, no doubt about it. Most likely..... obviously Mayweather's going to run. They go in the center of the ring, that's 5 seconds. By the time that she catches him that's another 5, [she] taps him out. So I would say about 16-17 seconds," De La Hoya told Bleacher Report.