Mayweather had tremendous stamina, because he had 10 min per round sparring sessions

[Boxtime]

https://www.youtube.com/watch?v=UmRLgr7sULA

Jack Catterall sparred with Floyd recently, perhaps for the Pacquiao fight, and says that some of the rounds he sparred with Floyd went on for 9-10 minutes.

And that is why Floyd never gasses out in fights. He does the hard work in training, in the gym!

[Luilun]

Steroids also helps

[Reloaded]

Steroids also helps

You would not know if you had a pole up your ass , and steroids dont increase stamina they increase power.

Be nice if the butt hurt ******s would grow up a little, seems in all the years I been here they still children.

[johny joe hdz]

You would not know if you had a pole up your ass , and steroids dont increase stamina they increase power.

Be nice if the butt hurt ******s would grow up a little, seems in all the years I been here they still children.

c'mon dude.. it does increase stamina by supplying more red cells to your system... therefore more oxygen.

[.!WAR MIKEY!.]

This is what surprised me in almost every gym ive trained in from northern cali to AZ almost EVERYONE just do 3 minutes, and take a break and then do 3 minutes. They say shit like I did 24 rounds today and im like so what you never went harder than 3 minutes. when I was in the gym I used to go 6-9 minutes depending on how I felt and yes I burned out faster then those doing 3 minute rounds but if I had kept it up I would have built up that stamina. I also did the 3 minute program etc and I had way more stamina than those who only did that 3 minute ish training. IDK I just find it funny.

[A.K]

A good way to get stamina is sprint for 3 minutes at a time 10 or 12 times. It's hell but it works tremendously.

[Aristocrat]

lmfao @ people who don't believe pro athletes use PEDs

[ruedboy]

You would not know if you had a pole up your ass , and steroids dont increase stamina they increase power.

Be nice if the butt hurt ******s would grow up a little, seems in all the years I been here they still children.

One benefit of steroids is that they help repair tissue damage and help an athlete recover faster from a hard training session. For increased endurance the drug of choice is either EPO or HGH. One of the advantages of EPO is that its hard to detect with drug testing so I would guess thats the PED favored by Floyd.

[Thraxox]

lmfao @ people who don't believe pro athletes use PEDs

Because you are one of the very few people who are completely neutral. Even now I am still wondering if you are a mayweather fan, a pacquiao fan, a GGG fan or a Ward fan or just neither.

[Reloaded]

One benefit of steroids is that they help repair tissue damage and help an athlete recover faster from a hard training session. For increased endurance the drug of choice is either EPO or HGH. One of the advantages of EPO is that its hard to detect with drug testing so I would guess thats the PED favored by Floyd.

Every pro that wins and has muscles is on the juice, just ask around the peanut gallery is everywhere.

Throughout history the famous last words of every busted ass loser is " They Cheated "