Mats Wilander analyzed Rafael Nadal's straight-set win over Matteo Berrettini in the US Open semifinals. The Swede said: "Just a fantastic level of tennis. Berrettini came out and played full out, unbelievably well, he deserved to win the first set but Nadal got better and better in this match, this tournament and I would say his career because he is improving on hard.
He lost 14 points on serve out of 14 serve games. He won 90 percent first point serves and 74 on second serve which means he serves well but also that Berrettini needs to move better as he is a big guy. What Nadal does better than any other player is that he breaks serve in the beginning of the set, pretty much straight forward, all the time.
And when he is ahead, he doesn't slow down. He wants to hit as hard as possible." Looking ahead to the final, Wilander added: "Nadal is even a bigger favorite with Medvedev than he was with Berrettini. Medvedev doesn't have the same firepower as Berrettini.
He is a tall guy and he has a flat backhand like Djokovic and Soderling who previously beat Nadal, but Medvedev doesn't like to hit his cross backhand so strong. He will have to runs a lot. He doesn't have many chances unless he serves out of his mind.
In the first set Rafa was a little bit passive, so he could try to be more aggressive against Medvedev. Rafa is the heavy favorite so he'd better not get influenced by the pressure."