Soft or not there's definite contact. You can clearly see Silva's foot under Pope's knee. I'd even go as far as to say it looks like it's caused him to go over on his ankle looking at the angle of his foot.

Grimsdale wrote:When you see the incident from another angle, it shows conclusively that there was no contact:

Conclusively eh? Looks to me like his knee traps his foot causing him to roll his ankle. Soft or not, there's definite contact.