Spurs have been chasing the 21-year-old midfielder for some time and boss Harry Redknapp is finally delighted to have landed the player who will link up with Spurs after the conclusion of the Copa Libertadores in South America this summer.
"He is an outstanding young player who we feel has a great future," Redknapp revealed. "He is a strong and aggressive midfield player. We are looking forward to having him here with us next season. He has already played for Brazil and captained their youth sides too.
"The chairman has done a terrific job to make this happen. I think there were hard and protracted negotiations so a lot of credit must go to Daniel (Levy).
"There are not too many chairmen that would fly half way around the world to get a deal done and he has gone and flown personally to Brazil twice."