Mikhail Startsev, 38, and kick boxer Liliya Vorogushina, 37, have been accused of beating a man who needed a walking stick.
Married father of three Pavel Pokhlov, 40, was passing by with his wife after a night out and "tried to intervene to stop the fight" in Siberian city Barnaul.
In the footage, Startsev appears to haul the disabled man to the ground while Vorogushina "aims kicks at the man's head", said a state media report.