The UFC's much-discussed debut card on the soon-to-be launched FOX Sports 1 channel has its first fight.

Both Floyd Mayweather and Robert Guerrero reached their welterweight limit at Friday's weigh-ins ahead of their bout on Saturday evening. Mayweather tipped the scales at 146 pounds while Guerrero came in at 147 pounds.

The World Series of Fighting announced Tyson Steele will meet Steve Carl on June 14.

Almost a year ago, Spike, Bellator and TNA, a pro wrestling company, made the announcement that King Mo Lawal had signed to be a part of both companies. Since that time, Lawal has gained a healthy respect for wrestlers, before debuting Wednesday..

Chris Camozzi has replaced the injured Costa Philippou in a middleweight matchup against former Strikeforce champ 'Jacare' Souza, while Rafael Natal draws octagon newcomer Joao Zeferino.

Submission ace T.J. Waldburger is out of his UFC 161 bout with Sean Pierson due to injury. Filling in on late notice will be UFC 157 Submission of the Night winner Kenny Robertson.

Cheick Kongo was given more chances to reach the upper echelon than nearly any other fighter in UFC history.

Costa Philippou has been forced to pull out of his middleweight bout against Ronald "Jacare" Souza due to a cut suffered in training, sources close to the event confirmed with MMAfighting.com Friday morning.

Eddie Alvarez could've reeled in a hefty paycheck from one of the year's biggest UFC pay-per-views. Instead, he's hunkering down for a long, torturous court case, as settlement talks between Alvarez and Bellator appear to have soured.