[5] He scored his first professional goal on May 2, 2009, against the next club he would sign with, Colo-Colo. Before the 2009 Clausura Tournament, Colo-Colo lost starting defender Luis Pedro Figueroa.

In 2008, he was part of the Chile Sub-18 side that won the João Havelange tournament which was held in Mexico.

[6] After showing good form in Antofagasta in 2007 and with Cobreloa at the beginning of 2008, Magalhães was named to the Sub-23 national side coached by Eduardo Berizzo.

In 2009, Magalhães was part of the sub-20 Chile team in the 2009 South American Youth Championship held in Venezuela, which was unable to surpass the group stage.

His good performance in the tournament caused him to sign with Chilean side Colo-Colo. From his paternal line – son of the Brazilian former professional footballer Osmar Magalhães and grandson of the goalkeeper of the same name – he is the nephew of Paulo César, a former footballer who won both the 1983 Copa Libertadores and the 1983 Intercontinental Cup along with Grêmio[9] and that worked as his agent.