Casper Ruud, ranked eighth in the world, won the first set 6-3 but Alexander Zverev came back.
The world four from Germany took home the second set with a clear 6-1.
- It was an exciting game.
It started well for me, but in the second set I had to bite into the sour apple.
A little carelessness and small mistakes, but despite that I manage to pick it up in the third, says Casper Ruud to NTB.
The Norwegian secured the victory in the third set which he won 6-3.
- My biggest victory so far in my career, says Ruud.
This was the third time Ruud and Zverev met.
The German has won the two previous meetings and Ruud believes that Zvervet did not play at the top of his level.
- In the name of honesty, I have seen him play better than he did today.
I took the chance now that I got it and it's not always easy, says Ruud.
- I got a little free today compared to previous matches.
This is the fourth time that Ruud reaches the semifinals of an ATP tournament.
In the semifinals in Miami, he will face the Argentine Francisco Cerundolo, ranked 103 in the world.
- It will be exciting and fun, we have never met.
This is his best week in his career and for me it is also one of my better weeks.
I hope to be able to take advantage of the fact that I have been to the semifinals three times before.