Toni Nadal thinks
Casper Ruud will become world number one eventually and that's not some far-fetched prediction.
Heading into the US Open this year, Ruud was one of the players that could emerge as the top player in the world post-US Open and came really close. He made his way to the final and lost to Alcaraz becoming world number two at the time and had he won it, he would have been number one.
Nadal knows Ruud well as the Norwegian trained at the Nadal Tennis Academy in Mallorca for a while and he talked about that in an interview with Eurosport:
“Casper Ruud, I remember when he came to the academy, he had a bad
backhand because, in my opinion, he made bad movements with his legs. Now his backhand is good. Back then, I said he needed to change a little. Now watch what has happened with Casper."
Nadal added:
“Every year, he has improved a little. I remember, when he came to
the academy, he never thought that he could be No 2 in the world. Now, I have seen many of his matches and he is a very good tennis player. He can be No 1.”