WBC welterweight champion Floyd Mayweather, Jr. has pled guilty on a domestic violence charge and has been sentenced to serve 90 days in jail according to Yahoo boxing writer Kevin Iole on Twitter:

Bad Left Hook has all the background on the plea deal:

Floyd Mayweather Jr will be getting rid of a lot of his legal woes by pleading guilty to reduced charges on several misdemeanors on Wednesday, which knocks down one of the repeated concerns about Mayweather fight Manny Pacquiao on May 5, if indeed each side is really serious about making the fight happen.

Top Rank promoter Bob Arum has been fond of bringing up Mayweather's impending court cases when giving reasons why Floyd and Manny Pacquiao didn't fight in 2011 and maybe can't in 2012, so this ends that whole thing. Arum knew better, of course -- it was just an excuse, something to say, and a way to point out that Mayweather had a lot of legal trouble on his plate. At no point did Arum likely believe Floyd Mayweather was going to serve jail time or anything of the sort; Mayweather fought Victor Ortiz on September 17 with all of this hanging over his head, and he wasn't going to miss a May 5 date either.

Note that BLH was writing before the 90 day sentence was announced. It's hard for me to see how Mayweather spends January, February and March in jail and still has time to train for a May bout with Manny Pacquiao.

The Washington Post has more:

The plea deal avoids trial on felony allegations that he hit his ex-girlfriend and threatened two of their children during an argument at her home in September 2010.

Prosecutor Lisa Luzaich told the judge Mayweather has been in trouble before and hasn't been punished.

Also see Bloody Elbow's coverage of Mayweather's September 2010 arrest as well as an unrelated November 2010 allegation.