Was playing dominion and a Kensei bot got me with a guard break and then a knee to the face. I have been trying to figure out how to do the knee strike (aspiring Kensei main here) but for the life of me, I can't! Been searching online but no one mentions it.
I'm fairly sure what you saw was kensei throw you backwards from a GB where he knees you in the face first then throws you behind him, hope this helps!