Now for the match, here's an interesting thing going into this match:
Last year, Medvedev beat Rublev in three sets, while Tsitsipas came back from two sets down to beat Nadal in 4 hours and 5 minutes of play
This year, Tsitsipas beat Sinner in three sets, while Medvedev came back from two sets down to beat FAA in 4 hours and 42 minutes of play.
So, it is a reversal from last year. Tsitipas came to the SF match pretty much dead beat at least in the first two sets. I don't expect Medvedev to be like "that" because he knows how to handle these situations now. However, it is something to keep an eye on...
Now, from a technical standpoint, this is a great match-up for Medvedev at least on hard-courts because his strengths (defense and movement) matches very well with Tsitsipas' strengths (offense and serve). The main key in this match-up at least on hard-courts is that Medvedev can attack Tsitsipas' defense while Tsitsipas is not able to dent Medvedev's great defensive prowess. Part of it is because of technical flaws from Tsitsipas (backhand, return of serve, and slice). Once Medvedev goes aggressive mode, Tsitsipas is not able to sustain barrage from Medvedev. And if Tsitsipas wants to be the aggressive one, then Medvedev is able to absorb the pace and etc...
All in all, while Medvedev will be the more "spent" player going into the match, I think he will able to survive Tsitsipas and win in 4 or maybe 5 sets.
I am curious to see if Tsitsipas' will change something a little bit to throw off Medvedev...