 Barcelona has the right to a percentage of a future sale.Grimaldo played his first game with his new team on 26 January 2016, coming in as a 62nd-minute substitute for Sílvio in a 6–1 away routing of Moreirense for the Taça da Liga.He debuted in the Primeira Liga on 29 February, featuring the full 90 minutes in a 2–0 home win against União da Madeira; he only appeared once more in the latter competition until the end of the season, filling in for suspended Eliseu in a 4–1 success over Nacional also at the Estádio da Luz that sealed the club's third consecutive national championship.