"Things have always happened very fast in my career. I quickly went from juniors to Challengers, then ATP," Fonseca said.
"I always thought I could go far, I could get to where I am or even more, but not so soon.
"I didn't know the impact of my performance at the Australian Open, but they explained to me that a lot has changed in terms of the media.
"I'm a little off social media, and now I see how everything has changed. I'm proud, but I want more.
"Seeing that children idolise me motivates me to reach my goal, which is to be number one in the world.
"I am honoured by the messages I have received from national and world idols. You know who I am. Neymar, Vini, Ronaldo," Fonseca said.
"They are idols, people I saw as untouchable. The children saying that I am an idol for them is crazy. I'm very happy with everything that's happening."
"I was watching the match. I think he played a great match, his first ATP Final," Alcaraz said.
"I was just really happy about him playing and getting his first ATP title. His potential is huge. His level is really, really high.
"I saw a stat that in this part of the year last year he was No. 660, and now he is No. 68. So, I'm pretty sure during the year he's going to get higher."
"I can say let's see in the future, but he has potential, he has the level to get there or to fight for great things. So, I'm excited to see him in real life in a match.
"I'm excited to see if I'm going to play against him soon."