In this image released by the Clark County Detention Center, Floyd Mayweather Jr. is seen in a booking photo, on Friday, June 1, 2012

*Floyd Mayweather Jr. turned himself in to a Las Vegas jail this afternoon to begin serving the remaining 87 days of his 90-day jail sentence for domestic violence. [Scroll down to watch.]

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The boxer was given a three-day credit for time served after his arrest. 50 Cent was present in court for moral support.

Las Vegas Justice of the Peace Melissa Saragosa praised the boxing legend for having already completed 45 hours of community service — 20 hours at Habitat for Humanity, 10 hours at a Nevada food bank called Three Square and 15 hours at Las Vegas Rescue Mission. Floyd has 55 hours left to complete.  In addition, Floyd has already completed 21 of his 54 required domestic violence classes.

Floyd Mayweather Jr., right, walks into court escorted by his attorney Karen Winckler, center, and 50 Cent, left.

Floyd Mayweather Jr., left, appears with his attorney, Karen Winckler, before Clark County Court justice of the peace Melissa Saragosa, to turn himself in to begin a 90-day jail term, Friday, June 1, 2012, in Las Vegas

Mayweather Jr. is led away by court marshall Ron Johnson

“He’ll be all right,” Mayweather’s friend, rapper 50 Cent, told reporters afterward with ring adviser Leonard Ellerbe outside the courthouse in downtown Las Vegas.

“It’s an uncomfortable situation for everyone,” he said.

50 Cent, center, talks with Floyd Mayweather Jr.'s advisor, Leonard Ellerbe, left, after Mayweather turned himself in to begin a 90-day jail term, Friday, June 1, 2012

As previously reported, Mayweather was due to begin his sentence in January, but the judge postponed his jail date so he could fight Miguel Cotto on May 5th. Floyd won the bout, which made $94 million in pay-per-view sales.

Floyd pled guilty to misdemeanor domestic violence in December for beating up his ex-girlfriend Josie Harris in front of their kids. His next status conference is on Nov. 15, when Floyd will have to show he’s continuing to fulfill his court-ordered obligations.