article_snippet.sent: As eight teams prepare to battle it out for a place in the semi-finals of the European Rugby Champions Cup, Sportsmail's Nik Simon gives us a run-down of each of the sides left in the competition.
highlights_snippet.sent: Eight teams are left to battle for a place in the semi-finals of the European Rugby Champions Cup .
  
highlights_snippet.sent: Sportsmail takes a look at Sportsmail strengths, weaknesses, key players and record in the competition up until now .
  
highlights_snippet.sent: The quarter-finals will be played over Saturday and Sunday April 4-5 . 