Floyd Mayweather Jr has put his money where his mouth is ahead of his Manny Pacquiao bout, wearing a custom guard including pieces of a $100 bill.

Mayweather is known for his flamboyant nature and regularly gives fans an insight into his extravagant life on social media.

And his mouthguard has caught the eye, with Mayweather reportedly spending $25,000 to have it made.

The unbeaten American has hired a chef especially for his training camp, reportedly on a $1,000-per-meal deal, while a special belt has been made for the May 2 showdown with Pacquiao.

The Filipino's trainer, Freddie Roach, has taken numerous jabs at Mayweather's flashy approach, claiming "Floyd is getting his just desserts" in a recent interview.