By Matthew Cooper The Europa League is back on Thursday with 16 teams in action in the first knockout round, but Liverpool, West Ham, Brighton and Rangers are not among them. All four British teams qualified from their respective groups and that means they have advanced straight to the last-16, along with Atalanta, Villarreal, Salvia Prague and Bayer Leverkusen. The eight teams which finished second in their groups, however, have to win their knockout round play-offs in order to reach the last 16. Those teams are the ones which will be in action on Thursday, having been drawn against the eight…