Pepe LeFrits I think you play your best players from the group that are fully fit/not carrying any niggles.
We still need to qualify for the k/o stage and it's against Bayern, who are one of the best teams in Europe - it's not about their 'status', it's about the fact they'll give us a tough match and we should be aiming to win.
But yeah, any players that are injury risks, then don't start them because (a) we've got a squad, (b) we're competing on multiple fronts whilst being (c) less than halfway through the season.