Boxing champion and pound-for-pound great Floyd Mayweather faced the music today (Fri., June 1, 2012) and I'm not talking about his buddy 50 Cent.

"Money" surrendered himself to Las Vegas Justice of the Peace Melissa Saragosa, who made arrangements for him to be taken off to the Clark County Detention Center in Las Vegas, Nevada, to begin serving his 90-day jail sentence. With three days credit for time served, he'll spend a total of 87 days in the clink.

Mayweather plead guilty to misdemeanor domestic battery and no contest to two harassment charges, prompting prosecutors to drop felony charges prior to his sentencing back on Dec. 22, 2011. He remained free as part of a plea deal that allowed him to fight Miguel Cotto last month in "Sin City."

He would go on to win that fight, a thrilling, 12-round affair that earned him a record guaranteed purse of $32 million and garnered an unbelievable 1.5 million buys on pay-per-view.

But instead of counting his green, Mayweather will be counting down the days until his release. According to the Associated Press, he'll do so in "a 7-by-12 foot cell with a bunk, stainless steel toilet and sink, a steel and wood desk with a permanently bolted stool and two small vertical windows with opaque safety glass."

What a way to spend the summer, huh?

For more on Mayweather's arrest and subsequent time in the big house click here and here. Check out a few more pics of Mayweather in cuffs after the jump.

All photos by David Becker/Getty Images.

HT: Bloody Elbow