In a nutshell: Arsenal v Sparta Prague, Liverpool v Toulouse, Celtic v Spartak Moscow and Rangers or FK Zeta v Crvena Zvezda or Levadia Tallinn.
The BBC is lamenting a tough draw for the British clubs, but you would expect at least three of the four to progress. They may not be easy games (there are no easy games at this level, Clive) but to call it a tough draw might be taking things a bit too far. Sparta Prague are a team Arsenal generally beat comfortably in the group stages. And if Liverpool can’t make it past Toulouse then they don’t deserve to be in the competition anyway. Celtic have man-for-man the toughest draw, but even a below-par Rangers should have what it takes to defeat their potential opponents.
Having these matches so early in the season can make them nasty banana skins. Pre-season or not, anything less than three out of four going through would signal some disastrous slip-ups.