Ps3 smackdown vs raw question?

ok i hope you all understand me ok ready ok i was watching this video on youtube and this guy or girl was randy orton and the other person was rey mysterio, ok this is the thing rey was up on the turnbackles (sorry i spelled it wrong, well you the place where they just high) so when he as up there and when he jump and randy was on the floor, rey jump off from you know where and randy got up fast and did the RKO. How did he do that, so thats my question hope you pleople understand me. I you didint hear is the video i hope its there, if it isnt sorry, that thing where randy does the cool rko its in 4mins and 12sec thats when it happens sorry for writing alot