Gennady's neck and chin exercises. Never been down in 400 fights. Discipline.

[Luilun]

1) Genetics
2) Steroids

These Foot ball Players have been roiding since High School

[juandabomb]

"but he ducking ward doe"

[Cogitation7]

My man knows how to train hard. The soviet boy puts the mexican coward at shame. Amir Khan should learn a bit from this.

Soviet boy? The man is not even Russian.

[_Maxi]

Soviet boy? The man is not even Russian.

How ignorant can you be? the Soviet nation included more countries, not only Russian. Kazahstan is a former Soviet Union country, and it was when Gennady was born and raised. So he's a Soviet boy.

[The Big Dunn]

GGG's fans have stronger necks and chins.

[mobstarik]

Soviet boy? The man is not even Russian.

You moron go read some books

[Cogitation7]

How ignorant can you be? the Soviet nation included more countries, not only Russian. Kazahstan is a former Soviet Union country, and it was when Gennady was born and raised. So he's a Soviet boy.

Touche caca boy

[Cogitation7]

You moron go read some books

Will you teach me how to read?

[SUBZER0ED]

Someone told me their neck got that big because of steroids, they got that Juggernaut look going.

How would you like to have neck like that? It must be tough buying dress shirts. Have to get them custom made.

Yeah, they're all clearly juicers.

[Mighty_Windir]

Mayweather did some neck exercises similar to one of those he did, and he was never down, hurt yes but never down from a punch.

Takes notes, might look silly but seems effective.