This week is now over the halfway point of the Champions League group stage, and matchday four has plenty of big games -- and big implications -- to cover. You may have seen these fixtures before in matchday three, but it's now the reverse as the away side is at home this time around.
Manchester United won't want a repeat of their embarrassing defeat to Istanbul Basaksehir, while PSG will be looking to peg back RB Leipzig's lead in second place of Group H. Elsewhere in the groups, Liverpool now host Atalanta, while Barcelona, Bayern Munich and Real Madrid will be looking to put disappointing weekend results in the rear view mirror.