Gabriel Alonso Suazo Urbina was born on 9 August 1997 in Santiago, Chile. He joined Colo-Colo's academy as a child and rose through the club with the mentality of a midfielder before settling as a left-back and left wing-back. That midfield education remained important: Suazo never looked like a full-back who only ran the line, but like a player who understood where the next pass should go.
At Colo-Colo he became captain and one of the emotional leaders of the club. He lived through difficult seasons and then helped the side return to domestic strength, including the league-title campaign in 2022. His leadership, consistency and ability to play several roles on the left made him one of the most complete locally formed Chilean players of his generation.
In 2023 he moved to Toulouse in France and immediately helped the club win the Coupe de France, an achievement that gave his European career an ideal start. By 2026 he was with Sevilla in Spain, a move that reflected both his maturity and the value of a left-sided defender able to compete in a more demanding tactical league.
For Chile he debuted in 2017 and gradually became the national team's first-choice left-back. By the 2026 cycle he was captaining La Roja, carrying responsibility in the years after the golden generation and representing a bridge between the experienced players who won the Copa América titles and the younger group trying to build a new identity.
Suazo is left-footed, tactically alert and more polished in possession than many full-backs. His mix of leadership, overlapping stamina and interior passing lanes can be compared to Jordi Alba in function, though with less explosive top speed and more emphasis on organising the team's left side.