If either the drum seals or the tub support rollers are defective, it will allow the clothes to become lose outside the tub (drum). This will cause the clothes to be either stained or torn.

Both of these conditions cause a small gap to form between the drum and the front and/or rear panel.  This small gap is sufficient enough to allow clothes to become pinched while the drum is spinning.  This pinching and spinning will often stain or even tear clothing.

You can confirm the situation if the drum has uneven gaps at the point where it meets the front and rear wall.  If the rollers are worn the there is usually a gap between the drum and the wall.

If the seal is bad, there may be sections of seals missing or and even gap all the way around the drum at the wall.