The Brazilian struggled to make an impact last year as Mourinho built a team which relied on the skill of Cristiano Ronaldo.
“It gives me hope because there was a lot of talk regarding me leaving Real Madrid this summer and it seemed to put an end to all that,” he said.
“Mourinho believes I can improve and help the team. It’s good to know he’s aware that I’m by his side. I’m going to fight to continue to be there, but also to be a starter.”