The team's victory over Palmeiras secured their spot in the final.
"We are happy that we achieved our goal of reaching this stage in the competition," said Gusto.
"The game against Palmeiras was tough, but we were able to handle their high energy level and come out on top."
Gusto believes that mental strength has been the key to their success in the tournament so far.
"As a player, my coach reminds me to do something big and make a positive impact on the team," he explained.
"I try to stay focused and give my best in every game, and I'm happy that we were able to win this match."
Chelsea will now face Fluminense in the semifinals, and Gusto is eager to take on the challenge.
"We still have a lot of work to do, but we believe in ourselves and are ready to give our best in the next match."