Fighters who never take a backward step?

[Evil Abed]

Jesus Chavez, Marcos Maidana, Antillion,

[GoogleMe]

Julio Cesar Chavez

[Mayas]

Humberto Soto



http://www.youtbe.com/watch?v=CwBQbA0G9ss

[武士道]

Margarito, before Shane convinced him to take a backwards step.

[Konstantin]

Castillo blabk blabk

[Eastbay Giant]

This Guy...

[Thread Stealer]

Nobody. Even guys known for pressure like Chavez, Margarito, and Frazier have to take backward steps here and there.

Chavez liked to box around the ring at times as well, using lateral movement and backing up.

[goblin213]

Dwight Muhammad Qawi and Benny Briscoe

[RIZO24]

Alfredo "El Perro" Angulo, He does not know how to take steps back in the ring!!

[Steak]

Pretty much all 'come foward' fighters actually take backsteps occasionally to get out of the range of a punch, pick the correct distance, etc.

Henry Armstrong, from the footage Ive seen, seems to fit the topic the most.