Trippier and Aurier really is the classic choosing between a rock and a hard place.Not so sure about Trippier, if Aurier is fit 100% then his power and pace may win the day if Poch is concerned about Mane’s pace.
Both 100% have the ability to lose us the game in the blink of an eye and neither of them really add anything of any real substance to the team.
I think when it comes down to it Poch will stick with Trippier. I think he's more composed, intelligent and focused than Aurier, he most certainly has more of Poch's trust than Aurier, and above all there's no way Serge could be anywhere near match fitness in comparison. I would be surprised if he even made the bench tbh.