Not true Gnu.

The video ref has all the benefit of the slow motion replays etc.

It was very clear that Warburton went out of his way to ensure that he didn't land on clerc. He took great care, once the tackle had been made - and once he realized that it wasn't his opposite number he was tackling but a tiny substitute - to ensure that no damage was done and that clerc was safe and unhurt.

Interesting to note that the same thing happened against Tonga - clerc made the strange decision to come into the pack and play whwre the big guys are - with exactly the same results - he was picked up by a surprised tongan forward and lifted into the air - surprised because no back row player with a sense of self preservation would be foolish enough to get caught in the contact area.