While still young, Santos is far from a novice at the elite level. He has already captained Brazil at various youth levels and achieved glory as a Club World Cup winner in 2025. His versatility allows him to operate effectively as either a No. 6 or a No. 8, providing Carrick with vital tactical flexibility as United look to return to the summit of English football.
His previous loan spell at Strasbourg also highlighted his goal-scoring threat, where he netted 11 times and provided five assists. "Everybody told me about how ambitious the club is and the amazing environment that has been created here," Santos concluded. "I know just how strong the squad is and I cannot wait to fight together to compete for the biggest trophies."