You are saying this because we beat Juve. "If MUFC can beat Juve, they must be crap".
If/when Juve play MCFC, we will find out, but until then, that is conjecture. IMO, Juve, Barca and PSG are the favourites for the CL, while MCFC are 1 tier below those clubs.
Juve in the CL rarely lose.
There is a narrative, which I am noticing on this forum:
1, Before we play a team, they are a great team, unbeaten in x matches and have a great manager.
2, We play them and beat them. That team is then branded crap, mid-table, etc.
I noticed this with Bournemouth and now Juve. Although we did not beat them, I noticed the same thing with CFC (before the match, they were going to beat us 4-0), then after the match, "they aren't actually that good".
I am not saying that we will win against MCFC, in their home stadium, but what I am saying is that the teams we have beaten are actually pretty good, with Juve being the best of them. It just so happens that we have recovered from our early season meltdown (which IMO, was Jose's fault). I think it also helps that for the first time since he joined us, Jose is now behaving like Jose used to. And when Jose behaves like he used to, Jose tends to win a lot of trophies. Perhaps it needed us to hit rock bottom (10th place, a few weeks back), for our team/manager to get their act together.