Haha, no problem AP. Mischa's been playing really well for half a year now and really looks like a top 20 player. Who knows how this will last, but it could be interesting.
Fedal is a real possibility, but both have some tough opponents ahead. Roger has Kei and then Mischa. Kei will be tough but is beatable and I think Roger will straight-set Mischa. But then he probably has Stan, who has had the edge over him in recent years, or maybe Tsonga.
Rafa has Gael Monfils, who he should be able to rattle and beat, and then probably Milos, who will be very, very tough. If he gets by Milos, he's got Thiem, Goffin, Istomin, or Grigor - all playing well.
So I think that Fedal is possible, but far from a sure thing.