Robinho Jr also made cameo appearances in defeats to Mirassol and Internacional in July, and signed a contract extension through to 2030. That agreement included a €100 million (£86m/$118m) release clause, per Placar, and he was given the No.7 shirt that his father wore during his time at Vila Belmiro.
Santos president Marcelo Teixeira said in the official club announcement: "From his first steps in the youth academy, he demonstrated that he has great technical potential. His attacking DNA and Santos' tradition of revealing great talents leave us confident and hopeful; he will write his own history at the club."
Santos boss Juan Pablo Vojvoda only used Robinho Jr sparingly in August and September, but finally handed the forward his maiden start for a trip to the Allianz Parque to face Palmeiras on November 7. He impressed during his 65 minutes on the pitch, showing intelligent off-the-ball movement and strong link-up play despite Santos' struggles to keep possession for long periods. Palmeiras ultimately emerged 2-0 winners, but Robinho Jr asserted himself well at one of the most intimidating stadiums in Brazilian football.
"I liked his first half. He played a solid match, especially considering it was his first start," Vojvoda told reporters. "He will keep growing. I spoke to him and told him he will be a great player. Of course, he still needs numbers, assists and goals, but he is on the right path."
Santos welcomed Palmeiras to Vila Belmiro for the reverse fixture just a week later, and exacted their revenge, with Robinho Jr playing a vital role off the bench. He calmly headed the ball down for Benjamin Rollheiser to fire in the only goal of the game in the 91st minute.
Robinho Jr finished the 2025 campaign with 15 senior appearances to his name, and has added six more to his name already at the start of the new Brazilian season. Vojvoda has yet to hand the teenager a regular starting role, and he's still looking for his first professional goal, but he is considered to be ahead in his development.