Tsitsipas said that it is to become World Number One and that the competition he is getting at the moment is what spurs him on to further success.
He also spoke about having his father with him and said that he makes him feel even more confident.
"My goal is the number one ranking position. What matters for me is the competition. That's what makes me feel alive. Just playing well is not enough to win against somebody who is high in sports and achieved a lot", said Tsitsipas.
"My father Apostolos makes me feel confident. I could not have a better man next to me."
https://twitter.com/Eurosport_UK/status/1199700326250668037?s=20