So much anger in this thread, it surprises me. This match was absolutely incredible. I'm surprised everyone isn't ecstatic after seeing it.
These two were absolute warriors the whole way. Both were constantly exorcising their own demons. Tsitsipas fighting his impatience, inexperience, and anger. Wawrinka fighting his physical ailments and age. Both guys were at incredibly high level the whole way. Yes, Tsitsipas blew break points, but quite honestly... many of those were just Wawrinka continuing to go for his shots and bludgeoning the ball regardless of the score. Wawrinka blew several opportunities himself. I thought both were nearly equivalent level. Someone else said it, but it came down to experience in the end. I called Wawrinka in 4... I've never been happier to be wrong. But the reason for Tsitsipas' loss I wasn't wrong about. Purely inexperience.
I'll say something else. If Wawrinka recovers physically even 75% from this match, Federer is going to be destroyed. Up until this point, Federer has not had any kind of opponent to prepare him for Wawrinka's current form. Whereas Tsitsipas is the perfect opponent to have before playing Federer -- both are so similar. Either guy would beat Federer right now, IMHO.
Wawrinka's fitness is clearly there. If Wawrinka's knee holds up for the next week, I think Nadal might be the only one to possibly stop him from winning the whole thing. Wawrinka is in that scary, neanderthal form and mindset -- yet again.