1. Athletic Club Bilbao. There are two reasons that I have picked Athletic Club to win this group. First, their defense is very suffocating led by goalkeeper Iraizoz. Second, forward Llorente is unstoppable in front of the goal.
2. PSG. PSG went on a spending spree by bringing in goalkeeperand playmaker from Palermo. They could possibly win this group based upon the added depth to this club, but I have a feeling that they won't win this group stage due to the overall team still being average at this point.
3. Red Bull Salzburg. Usually, Red Bull has a strong team. However, it doesn't look strong enough to contend with Bilbao and PSG.
4. Slovan Bratislava. Bratislava pulled off the upset in qualifying for Europa League by defeating Roma. However, I do not think that there are any more upsets in the future for Slovan Bratislava.