Mickey 'the Munch' Skinner tackles Marc Cecillon early in the second half of the 1991 RWC quarter final in Paris, a game of considerable tension and not a little confrontation. England had set out with the intention of roughing up the French to put them off their game, and it worked. Brian Moore's most memorable game - according to his autobiography.
As if the tackle wasn't enough, I like the way the England front row hit the ensuing ruck as a unit and clear out the entire French pack.
See also,
http://www.telegraph.co.uk/sport/rugbyunion/international/england/2323081/When-Mick-Skinner-took-the-wind-out-of-France.html
