Roger Federer Will Win Madrid Open and Take No. 2 Ranking from Rafael Nadal

Roger Federer is going to beat Tomas Berdych in Sunday's Madrid Open finals and take over the ATP No. 2 ranking from Rafael Nadal in the process. 

The tennis legend is playing fantastically. He advanced to the finals by beating Janko Tipsarevic 6-2, 6-3 on the blue clay Saturday. 

He laid the groundwork for this easy victory with a dominating serve. He was on point with his serving accuracy, and he recorded eight aces. This also set him up to hit many of his 25 winners in the match. 

Federer hasn't played in over a month, but he has showed no signs of rust in this tournament. And his great play here is just a continuation of his play this year. 

A win over Berdych will give Fed his fourth title of the year. And the way he is playing, that win is all but inevitable. 

The key to his resurgence has been his serve. A strong first serve sets Federer up for everything he loves to do on the court: Namely, smash his deadly forehand down the lines. This is going to serve him well against Berdych. 

Berdych, 6'5", moves well for a man his size, but mobility is not his strong point. He is going to have a hard time getting in good position to deliver his crushing groundstrokes. 

This style sets up well for Federer. He can roam the baseline and pick his spots to attack. This is right in his comfort zone. 

This will lead to Federer leapfrogging Nadal in the standing—something many thought the 30-year-old would not be able to accomplish in his relatively advanced age.