Sergi Rosanas, 19, joined Barça in 2009 from Vilassar de Mar. Xavi Franquesa's Benjamín B was his first team. He has gone through all the categories of Barça's training football, where he highlights, for example, his participation in winning league titles with U12C (2011/12), U12A (2012/13), U14B (2013/14), U16B (2015/16), U16A (2016/17), U19B (2017/18) and U19A (2019/20). He joined the Masia Residence - Oriol Tort Training Center in his time with U19B.
In the 2019/20 season he was only able to play 727 minutes in the league with Franc Artiga's U19A side due to injuries, scoring one goal. In the UEFA Youth League he played 271 minutes in five group stage matches. He has a contract until 2023 and a termination clause of 50 million euros.
A Barça-style right-back who is quick, has a good first touch and has a tendency to join the attack. He has been an international in all of the Spanish youth teams.