Self defence against ground stamps and kicks

You've seen several ways to defend yourself when the assailant punches aggressively.Now let's take a look at self defence against ground stamps and kicks.
When you are left in such a vulnerable position,raise your hands to shield your face and move your legs and shoulder blade to avoid those strikes.
Then with the correct timing,grab the assailant's leg and execute a footlock.
Check out the video to see how it's properly done.