Floyd Mayweather No Tip, 'Stiffs' Waitress After Marcos Maidana Fight Victory & $25,000 Tab, 'Struggling' Nik Nguyen Upset As Strippers Get Paid [PHOTOS]

Legendary boxing champ Floyd Mayweather just defeated Marcos Maidana in an epic Las Vegas showdown - and earned a whopping $32 million for the victory. Following the fight, Mayweather and his posse celebrated with a huge Rehab at the Hard Rock food and drink binge. The party wracked-up a crazy bill amounting to over $25,000 - but the mega-rich athlete didn't even leave a tip!

And waitress Nik Nguyen is extremely disappointed about it.

On Sunday afternoon (September 14), Mayweather arrived at to the restaurant with about 150 people. Here's the final bill (via TMZ):

5 bottles of Patrone - $2,375
3 Grey Goose - $1,425
6 bottles of Ciroc - $2,850
20 bottles of Luc Belaire Rose champagne - $11,500
1 6-liter bottle of Luc Belaire Rose - $6,500
200 chicken wings - $600
1 fruit platter - $55

Total:$25,305

Impressive order... a typical 20% tip would easily equal about $5,061.

But perhaps Mayweather simply forgot after the popular eatery comped his entire bill? Because according to Nguyen, despite her awesome service, she didn't recieve a penny.

What's really bothersome - members of Mayweather's entourage (including actor Jamie Foxx) had no problem throwing tons of cash at "twerking" females dancing throughout the restaurant.

Right now, Nguyen's allegedly working two jobs to keep things afloat after the death of her father. Security guards felt so bad for the struggling waitress, that they swept the stage for extra cash after the dancers left and gave it to her. Mayweather's reps have yet to comment on the "no tip" scandal.

Hopefully, it was all just a crazy misunderstanding and Nguyen will eventually get the money she deserves.