Although Floyd Mayweather is usually the one landing the body blows, The IRS just dealt the boxing champ a very sweet blow of its own.

Mayweather was just hit with a $3.4 million bill, reports the Detroit News, who discovered that the lien was for unpaid 2009 federal income taxes.

This isn’t the undefeated fighter’s first time in the ring with the government. In 2008, Floyd was hit with a $6.1 million tax bill. But he eventually worked out a payment plan with the feds for that one.

Mayweather, who goes by the nickname Money, tweeted and did a radio interview last month about winning $37,000 on a Chicago Bulls game (it was a legal bet in Vegas). Hopefully he’ll remember to report that when he does his 2011 taxes.

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