[6][7] In 2021, he rejoined Deportes La Serena in co-ownership with Universidad de Chile.

[11] In 2017, Guerrero represented Chile U17 in friendlies against the United States[12] and the FIFA World Cup.

[3][14][5] He was included in the final squad for the 2023 Pan American Games,[15][16] where Chile won the silver medal.

[17] At senior level, he received his first call up for the 2026 FIFA World Cup qualifiers against Uruguay and Colombia in September 2023[18] and made his debut against Paraguay on 16 November 2023 by replacing Víctor Dávila at the minute 78.

[21][22] He is the son of the former football defender Vladimir Guerrero,[23] who also played for Deportes La Serena.