In the Cacique, he immediately was won the position of right back in the squad of the coach Mirko Jozic, European style assiduously defensive, but with very vertigo in the sidebands.

He was one of key players of the club in the squad that Colo-Colo achieved the Copa Libertadores 1991, after of defeat to Olimpia for 3–0 in the final, however he also was included in the best team of South America.

One year later, he returned to Colo-Colo. After of his spent for Colo-Colo, he joined to Shandong Luneng of Chinese Super League.

During the reality, he was the runner-up of the contest, after of loss in a mourning of force at final against the Spanish singer Javier Estrada.

He also has a football school in Viña del Mar, called Gabriel "Coca" Mendoza.